﻿*GROUP*
Mathematics
pi (Archimedes)
3.141592653589793238462
e (Napier)
2.718281828459045235360
log2
0.693147180559945309417
Euler-Mascheroni
0.577215664901532860606
Apery
1.202056903159594285399
Catalan
0.915965594177219015054
Conway
1.303577269034296
Delian
1.25992104989
Khinchin
2.685452001
Soldner
1.45136923488
Golden ratio
1.618033988749894848
*GROUP*
Physics
**GROUP**
Universal
Speed of light (m/s)
299792458
Gravitation (m³/kg·s²)
6.6742867e-011
Planck (J·s)
6.6260689633e-034
Dirac (J·s)
1.05457162853e-034
**GROUP**
Electromagnetic
Vacuum permeability (N/A²)
1.2566370614359e-006 
Vacuum permittivity (F/m)
8.8541878176204e-012
Vacuum impedance (ohm)
376.730313461
Coulomb (N·m²/C²)
8.9875517873682e+009
Elementary charge (C)
1.60217648740e-019
Bohr magneton (J/T)
927.40091523e-026
Conductance quantum (S)
7.748091700453
Inv conductance quantum (ohm)
12906.403778788
Magnetic flux quantum (W·b)
2.06783366752e-015
**GROUP**
Atomic and Nuclear
Electron mass (kg)
9.1093821545e-031
Proton mass (kg)
1.67262163783e-027
Neutron mass (kg)
1.6749286e-027
Electron charge (C)
1.60217648740e-019
Proton charge (C)
1.60210e-019
Electron radius (m)
2.817940289458e-015
Fermi coupling (Ge/V²)
1.166391e-005
Fine-structure
7.29735256824e-003
Hartree engery (J)
4.3597441775e-018
Rydberg constant (1/m)
1.0973731568525e+007
Thomson x-section (m²)
0.66524587313e-028
Weak mixing angle
0.2221575
Radiation density (J/(cm³·K^4))
7.5645e-022
**GROUP**
Physico-chemical
Atomic mass unit (g/mol)
1.6605388628e-027
Avagadro's number
6.0221367e+023
Boltzmann k (J/K)
1.3806505e-023
Faraday F (C/mol)
96485.338383
Gas constant R (J/°K mol)
8.31447215
Molar Planck (J·s/mol)
3.99031271627e-010
Stefan-Boltzman (W/(m²·K^4))
5.67040040e-008
**GROUP**
Common Values
Standard gravity (m/s²)
9.80665
Standard gravity (ft/s²)
32.174
Standard atmosphere (Pa)
101325
Speed of sound (m/s)
343
Speed of sound (ft/s)
1125
Speed of sound (mph)
767
Molar mass (kg/mol)
0.001
Absolute Zero (°C)
-273.15
*GROUP*
Solar System
**GROUP**
Sol (the Sun)
***GROUP***
Physicial
Mean diameter (m)
1.392e+009
Equitorial radius (m)
6.955e+008
Equitoral circumfrence (m)
4.379e+009
Flattening
9e-006
Surface area (m²)
6.0877e+018
Volume (m³) 
1.4122e+027
Mass (kg)
1.9891e+030
Average density (kg/m³)
1.408e+003
Core density (kg/m³)
1.5e+005
Equatorial (m/s²)
274
Escape velocity (km/s)
617.7
Corona Temperature (°K)
5e+005
Surface Temperature (°K)
5778
Core Temperature (°K)
15.7e+006
Luminosity (W)
3.845e+026
***GROUP***
Rotation
Right ascension (deg)
286.13
Declination (deg)
63.87
Sidereal rotation (days)
25.38
Period: Equator (days)
25.05
Period: Poles (days)
34.3
**GROUP**
Mercury
***GROUP***
Basic Attributes
Mass (kg)
3.302e+023
Volume (km³)
6.083e+010
Equatorial radius (km)
2440
Polar radius (km)
2440
Volumetric mean radius (km)
2440
Ellipticity
0
Mean density (kg/m³)
5427
Surface gravity (m/s²)
3.70
Escape velocity (km/s)
4.3
GM (km³/s²)
.02203e+006
Bond albedo
0.056
Visual geometric albedo
0.11
Visual magnitude
-0.42
Solar irradiance (W/m²)
9214
Black-body temp (°K)
442.5
Moment of inertia (I/MR²)
0.33
***GROUP***
Orbital 
Semimajor axis (km)
57.6e+006
Sidereal orbit period (days)
87.969
Tropical orbit period (days)
87.968
Perihelion (km)
4.60e+007
Aphelion (km)
6.98e+007
Sydonic period (days)
115.88
Mean orbital velocity (km/s)
47.89
Orbital inclination (deg)
7
Orbital eccentricity
0.2056
Sidereal rotation period (hr)
1407.6
Obliquity to orbit
0.1
***GROUP***
Observational 
Max diam-earth (arc s)
13
Min diam-earth (arc s)
4.5
Max distance-earth (km)
2.219e+008
Minimum distance-earth (km)
7.73e+007
Apparent magnitude
-1.9
***GROUP***
Atmospheric 
Surface pressure (bars)
10e-015
Average temp (°K)
440
% of atm: Oxygen
42
% of atm: Sodium
29
% of atm: Hydrogen
22
% of atm: Helium
6
% of atm: Potassium
.5
**GROUP**
Venus
***GROUP***
Basic Attributes
Mass (kg)
4.869e+024
Volume (km³)
9.2843e+011
Equatorial radius (km)
6052
Polar radius (km)
6052
Volumetric mean radius (km)
6052
Ellipticity
0
Mean density (kg/m³)
5204
Surface gravity (m/s²)
8.87
Escape velocity (km/s)
10.36
GM (km³/s²)
0.3249e+006
Bond albedo
0.72
Visual geometric albedo
0.65
Visual magnitude
-4.40
Solar irradiance (W/m²)
2660
Black-body temp (°K)
238.9
Moment of inertia (I/MR²)
0.33
Topographic range (km)
15
***GROUP***
Orbital 
Semimajor axis (km)
1.082e+008
Sidereal orbit period (days)
224.701
Tropical orbit period (days)
224.695
Perihelion (km)
1.075e+008
Aphelion (km)
1.089e+008
Sydonic period (days)
583.92
Mean orbital velocity (km/s)
35.02
Orbital inclination (deg)
3.39
Orbital eccentricity
0.0068
Sidereal rotation period (hr)
5832.5
Obliquity to orbit
177.3
***GROUP***
Observational 
Max diam-earth (arc s)
66
Min diam-earth (arc s)
9.7
Max distance-earth (km)
2.610e+008
Minimum distance-earth (km)
3.82e+007
Apparent magnitude
-4.4
***GROUP***
Atmospheric 
Surface pressure (bars)
92
surface density (kg/m³)
65
Scale height (km)
15.9
Average temp (°K)
737
Diurnal temp range
0
Avg surface wind speed (m/s)
0.65
Mean molecular weight (g/mol)
43.45
% of atm: Carbon dioxide
96.5
% of atm: Nitrogen
3.5
Atm-con sulphur dioxide (ppm)
150
Atm-con argon (ppm)
70
Atm-con water (ppm)
20
Atm-con carbon monoxide (ppm)
17
Atm-con helium (ppm)
12
Atm-con neon (ppm)
7
**GROUP**
Earth
***GROUP***
Basic Attributes
Mass (kg)
5.9736e+024
Volume (km³)
1.08321e+012
Equatorial radius (km)
6378
Polar radius (km)
6356
Volumetric mean radius (km)
6371
Core radius (km)
3485
Ellipticity
0.0034
Mean density (kg/m³)
5520
Surface gravity (m/s²)
9.780327 
Escape velocity (km/s)
11.186
GM (km³/s²)
0.3986e+006
Bond albedo
0.385
Visual geometric albedo
0.367
Visual magnitude
-3.86
Solar irradiance (W/m²)
1360
Black-body temp (°K)
247.3
Moment of inertia (I/MR²)
0.3308
Topographic range (km)
20
***GROUP***
Orbital 
Semimajor axis (km)
1.496e+008
Sidereal orbit period (days)
365.256
Tropical orbit period (days)
365.242
Perihelion (km)
1.471e+008
Aphelion (km)
1.521e+008
Mean orbital velocity (km/s)
29.79
Orbital inclination (deg)
0.0
Orbital eccentricity
0.0167
Sidereal rotation period (hr)
23.9345
Obliquity to orbit
23.45
***GROUP***
Atmospheric 
Surface pressure (bars)
1014
surface density (kg/m³)
1.217
Scale height (km)
8.5
Average temp (°K)
288
Mean molecular weight (g/mol)
28.97
% of atm: Nitrogen
78.084
% of atm: Oxygen
20.946
% of atm: Water
1
% of atm: Argin
0.934
% of atm: Carbon dioxide
0.035
Atm-con neon (ppm)
18.18
Atm-con helium (ppm)
5.24
Atm-con CH4 (ppm)
1.7
Atm-con krypton (ppm)
1.14
Atm-con hydrogen (ppm)
0.55
**GROUP**
Mars
***GROUP***
Basic Attributes
Mass (kg)
0.6419e+024
Volume (km³)
16.318e+010
Equatorial radius (km)
3397
Polar radius (km)
3375
Volumetric mean radius (km)
3390
Core radius (km)
1700
Ellipticity
0.0065
Mean density (kg/m³)
3933
Surface gravity (m/s²)
3.69
Escape velocity (km/s)
5.03
GM (km³/s²)
0.04283e+006
Bond albedo
0.16
Visual geometric albedo
0.150
Visual magnitude
-1.52
Solar irradiance (W/m²)
595
Black-body temp (°K)
216.6
Moment of inertia (I/MR²)
0.366
Topographic range (km)
36
***GROUP***
Orbital 
Semimajor axis (km)
2.279e+008
Sidereal orbit period (days)
686.980
Tropical orbit period (days)
686.930
Perihelion (km)
2.066e+008
Aphelion (km)
2.493e+008
Mean orbital velocity (km/s)
24.13
Orbital inclination (deg)
1.85
Orbital eccentricity
.0934
Sidereal rotation period (hr)
24.6229
Obliquity to orbit
25.19
***GROUP***
Observational 
Max diam-earth (arc s)
25.7
Min diam-earth (arc s)
3.5
Max distance-earth (km)
4.013e+008
Minimum distance-earth (km)
5.45e+007
Apparent magnitude near opp.
-2.0
***GROUP***
Atmospheric 
Surface pressure (bars)
7.9
surface density (kg/m³)
0.020
Scale height (km)
11.1
Average temp (°K)
210
Mean molecular weight (g/mol)
43.34
% of atm:carbon dioxide
95.32
% of atm: Nitrogen
2.7
% of atm: Argon
1.6
% of atm: Oxygen
0.13
% of atm: Carbon monoxide
0.08
Atm-con water (ppm)
210
Atm-con nitrogen oxide (ppm)
100
Atm-con neon (ppm)
2.5
Atm-con HDO (ppm)
0.85
Atm-con krypton (ppm)
0.3
Atm-con xenon (ppm)
0.08
**GROUP**
Jupiter
***GROUP***
Basic Attributes
Mass (kg)
1.8966e+027
Volume (km³)
1.43128e+015
Equatorial radius (km)
71492
Polar radius (km)
66854
Volumetric mean radius (km)
69911
Ellipticity
0.0649
Mean density (kg/m³)
1326
Surface gravity (m/s²)
23.12
Esacpe velocity (km/s)
59.5
GM (km³/s²)
1.26686e+008
Bond albedo
0.70
Visual geometric albedo
0.52
Visual magnitude
-9.40
Solar irradiance (W/m²)
51.0
Black-body temp (°K)
90.6
Moment of inertia (I/MR²)
0.254
***GROUP***
Orbital 
Semimajor axis (km)
7.784e+008
Sidereal orbit period (days)
4332.589
Tropical orbit period (days)
4330.595
Perihelion (km)
7.406e+008
Aphelion (km)
8.160e+008
Synodic period (days)
398.88
Mean orbital velocity (km/s)
13.07
Orbital inclination (deg)
1.305
Orbital eccentricity
0.04839
Sidereal rotation period (hr)
9.9250
Obliquity to orbit (deg)
3.12
***GROUP***
Observational 
Max diam-earth (arc s)
59.0
Min diam-earth (arc s)
29.8
Max distance-earth (km)
9.681e+008
Minimum distance-earth (km)
5.885e+008
Apparent magnitude near opp.
-2.7
***GROUP***
Atmospheric 
Average temp (°K)
129
Mean molecular weight (g/mol)
2.22
% of atm: Hydrogen
88
% of atm: Helium
11
% of atm: Methane
0.2
% of atm: Ammonia
0.02
Atm-con hydrogen deuteride (ppm)
20
Atm-con ethane (ppm)
5
Atm-con water (ppm)
1
**GROUP**
Saturn
***GROUP***
Basic Attributes
Mass (kg)
4.6846e+026
Volume (km³)
8.2713e+014
Equatorial radius (km)
60268
Polar radius (km)
54364
Volumetric mean radius (km)
58232
Ellipticity
0.0980
Mean density (kg/m³)
687
Surface gravity (m/s²)
8.96
Escape velocity (km/s)
35.5
GM (km³/s²)
3.7931e+007
Bond albedo
0.75
Visual geometric albedo
0.47
Visual magnitude
-8.88
Solar irradiance (W/m²)
15.0
Black-body temp (°K)
83.9
Moment of inertia (I/MR²)
0.210
***GROUP***
Orbital 
Semimajor axis (km)
1.4268e+009
Sidereal orbit period (days)
10759.22
Tropical orbit period (days)
10746.94
Perihelion (km)
1.3476e+009
Aphelion (km)
1.5064e+009
Synodic period (days)
378.09
Mean orbital velocity (km/s)
9.66
Orbital inclination (deg)
2.484
Orbital eccentricity
0.05415
Sidereal rotation period (hr)
10.5
Obliquity to orbit (deg)
26.73
***GROUP***
Observational 
Max diam-earth (arc s)
20.1
Min diam-earth (arc s)
14.5
Max distance-earth (km)
1.6585e+009
Minimum distance-earth (km)
1.1955e+009
Apparent magnitude near opp.
0.7
***GROUP***
Atmospheric 
Average temp (°K)
97
Temp at 1 bar (°K)
134
Scale height (km)
59.6
Mean molecular weight (g/mol)
2.07
% of atm: Hydrogen
89
% of atm: Helium
11
% of atm: Methane
0.3
% of atm: Ammonia
0.02
Atm-con ethane (ppm)
2
**GROUP**
Uranus
***GROUP***
Basic Attributes
Mass (kg)
8.683e+025
Volume (km³)
6.833e+013
Equatorial radius (km)
25559
Polar radius (km)
24973
Volumetric mean radius (km)
25362
Ellipticity
0.023
Mean density (kg/m³)
1318
Surface gravity (m/s²)
8.6
Escape velocity (km/s)
21.3
GM (km³/s²)
5.794e+006
Bond albedo
0.90
Visual geometric albedo
0.51
Visual magnitude
-7.19
Solar irradiance (W/m²)
3.71
Black-body temp (°K)
35.9
Moment of inertia (I/MR²)
0.225
***GROUP***
Orbital 
Semimajor axis (km)
2.871e+009
Sidereal orbit period (days)
30685.4
Tropical orbit period (days)
30588.740
Perihelion (km)
2.7340e+009
Aphelion (km)
3.0052e+009
Synodic period (days)
369.66
Mean orbital velocity (km/s)
6.82
Orbital inclination (deg)
.770
Orbital eccentricity
0.04718
Sidereal rotation period (hr)
17.24
Obliquity to orbit (deg)
97.86
***GROUP***
Observational 
Max diam-earth (arc s)
4.1
Min diam-earth (arc s)
3.3
Max distance-earth (km)
3.1573e+009
Minimum distance-earth (km)
2.5819e+009
Apparent magnitude near opp.
5.5
***GROUP***
Atmospheric 
Average temp (°K)
58
Temp at 1 bar (°K)
76
density at 1 bar (kg/m³)
0.42
Scale height (km)
59.6
Mean molecular weight (g/mol)
2.64
% of atm: Hydrogen
89
% of atm: Helium
11
**GROUP**
Neptune
***GROUP***
Basic Attributes
Mass (kg)
1.0243e26
Volume (km³)
6.254e13
Equatorial radius (km)
24766
Polar radius (km)
24342
Volumetric mean radius (km)
24624
Ellipticity
0.0171
Mean density (kg/m³)
1638
Surface gravity (m/s²)
11.00
Escape velocity (km/s)
23.5
GM (km³/s²)
6.8351e+006
Bond albedo
.82
Visual geometric albedo
.41
Visual magnitude
-6.87
Solar irradiance (W/m²)
1.47
Black-body temp (°K)
33.2
***GROUP***
Orbital 
Semimajor axis (km)
4.4983e+009
Sidereal orbit period (days)
60189.0
Tropical orbit period (days)
59799.9
Perihelion (km)
4.4580e+009
Aphelion (km)
4.5352e+009
Synodic period (days)
367.49
Mean orbital velocity (km/s)
5.48
Orbital inclination (deg)
1.769
Orbital eccentricity
0.00859
Sidereal rotation period (hr)
16.11
Obliquity to orbit (deg)
29.56
***GROUP***
Observational 
Max diam-earth (arc s)
2.4
Min diam-earth (arc s)
2.2
Max distance-earth (km)
4.6873e+009
Minimum distance-earth (km)
4.3059e+009
Apparent magnitude near opp.
7.8
***GROUP***
Atmospheric 
Average temp (°K)
58
Temp at 1 bar (°K)
72
density at 1 bar (kg/m³)
0.45
% of atm: Molecular hydrogen
80
% of atm: Helium
19
% of atm: Methane
1.5
Atm-con hydrogen deuteride (ppm)
105
Atm-con ethane (ppm)
1.5
**GROUP**
Pluto
***GROUP***
Basic Attributes
Mass (kg)
1.25e+022
Volume (km³)
6.16e9
Volumetric mean radius (km)
1137
Mean density (kg/m³)
2050
Surface gravity (m/s²)
0.66
Escape velocity (km/s)
1.1
GM (km³/s²)
8.3e+002
Bond albedo
0.145
Visual geometric albedo
0.3
Solar irradiance (W/m²)
0.9
Black-body temp (°K)
42.7
***GROUP***
Orbital 
Semimajor axis (km)
5.9064e+009
Sidereal orbit period (days)
90465
Tropical orbit period (days)
90588
Perihelion (km)
4.4458e+009
Aphelion (km)
7.3812e+009
Synodic period (days)
366.73
Mean orbital velocity (km/s)
4.75
Orbital inclination (deg)
17.14
Orbital eccentricity
.2488
Sidereal rotation period (hr)
153.2928
Obliquity to orbit (deg)
122.46
***GROUP***
Observational 
Max diam-earth (arc s)
.11
Min diam-earth (arc s)
.06
Max distance-earth (km)
7.5333e+009
Minimum distance-earth (km)
4.2937e+009
Apparent magnitude near opp.
15.1
***GROUP***
Atmospheric 
Average temp (°K)
50
Scale height (km)
60
**GROUP**
Earth Satellites
***GROUP***
Moon
Mass (kg)
7.349e+022
Volume (km³)
2.1973e+010
Equatorial radius (km)
1738
Polar radius (km)
1735
Volumetric mean radius (km)
1737.5
Ellipticity
0.002
Mean density (kg/m³)
3340
Surface gravity (m/s²)
1.62
Escape velocity (km/s)
2.38
GM (km³/s²)
0.0049e+006
Bond albedo
0.067
Visual geometric albedo
0.12
Solar irradiance (W/m²)
1380
Black-body temp (°K)
274.5
Moment of inertia (I/MR²)
0.394
Topographic range (km)
16
Semimajor axis (km)
0.3844e+006
Perigee (km)
0.3633e+006
Apogee (km)
0.4055e+006
Revolution period (days)
27.322
Sydonic period (days)
29.53
Mean orbital velocity (km/s)
1.023
Orbital inclination (deg)
5.145
Orbital eccentricity
0.0549
Sidereal rotation period (hr)
655.728
equatorial inclination (deg)
6.68
recession rate-earth (cm/yr)
3.8
**GROUP**
Mars Satellites
***GROUP***
Phobos
Mass (kg)
1.08e+016
Major axis Radius (km)
13
Minor axis Radius (km)
9
Mean density (kg/m³)
1900
Geometric albedo
0.06
Visual magnitude
11.8
Mean distance-Mars (km)
9377
Sidereal orbit period (days)
0.31891
Orbital inclination (deg)
1.08
Orbital eccentricity
0.0151
***GROUP***
Deimos
Mass (kg)
1.8e+015
Major axis Radius (km)
8
Minor axis Radius (km)
5
Mean density (kg/m³)
1750
Geometric albedo
0.07
Visual magnitude
12.89
Mean distance-Mars (km)
23436
Sidereal orbit period (days)
1.26244
Orbital inclination (deg)
1.79
Orbital eccentricity
0.00033
**GROUP**
Jupiter Satellites
***GROUP***
Io
Mass (kg)
8.933e+022
Radius (km)
1821.3
Mean density (kg/m³)
3530
Visual geometric albedo
0.61
Semimajor axis (km)
4.216e+005
Period (days)
1.769138
Orbital inclination (deg)
0.040
Orbital eccentricity
0.041
***GROUP***
Europa
Mass (kg)
4.797e+022
Radius (km)
1565
Mean density (kg/m³)
2990
Visual geometric albedo
0.64
Semimajor axis (km)
6.709e+005
Period (days)
3.551810
Orbital inclination (deg)
0.470
Orbital eccentricity
0.0101
***GROUP***
Ganymede
Mass (kg)
1.482e+022
Radius (km)
2634
Mean density (kg/m³)
1940
Visual geometric albedo
0.42
Semimajor axis (km)
1.070e+006
Period (days)
7.154553
Orbital inclination (deg)
0.195
Orbital eccentricity
.0015
***GROUP***
Callisto
Mass (kg)
1.076e+022
Radius (km)
2403
Mean density (kg/m³)
1851
Visual geometric albedo
0.20
Semimajor axis (km)
1.883e+006
Period (days)
16.689018
Orbital inclination (deg)
0.281
Orbital eccentricity
0.007
**GROUP**
Saturn Satellites
***GROUP***
Mimas
Mass (kg)
3.75e+019
Radius (km)
198.8
Mean density (kg/m³)
1140
Visual geometric albedo
0.5
Semimajor axis (km)
1.8552e+005
Period (days)
0.942422
Orbital inclination (deg)
1.53
Orbital eccentricity
0.0202
***GROUP***
Tethys
Mass (kg)
6.22e+020
Radius (km)
529.9
Mean density (kg/m³)
1000
Visual geometric albedo
0.9
Semimajor axis (km)
2.9466e+005
Period (days)
1.887802
Orbital inclination (deg)
1.09
Orbital eccentricity
0.0
***GROUP***
Rhea
Mass (kg)
23.1e+021
Radius (km)
764
Mean density (kg/m³)
1240
Visual geometric albedo
0.7
Semimajor axis (km)
5.2704e+005
Period (days)
4.517500
Orbital inclination (deg)
0.35
Orbital eccentricity
0.001
***GROUP***
Hyperion
Semimajor axis (km)
1.4811e+006
Period (days)
21.276609
Orbital inclination (deg)
0.43
Orbital eccentricity
0.1042
***GROUP***
Enceladus
Mass (kg)
7.3e+019
Radius (km)
249.1
Mean density (kg/m³)
1120
Visual geometric albedo
1.0
Semimajor axis (km)
2.3802e+005
Period (days)
1.370218
Orbital inclination (deg)
0.02
Orbital eccentricity
0.0045
***GROUP***
Dione
Mass (kg)
1.052e21
Radius (km)
560
Mean density (kg/m³)
1440
Visual geometric albedo
0.7
Semimajor axis (km)
3.7740e+005
Period (days)
2.736915
Orbital inclination (deg)
0.02
Orbital eccentricity
0.0022
***GROUP***
Titan
Mass (kg)
1.3455e23
Radius (km)
2575
Mean density (kg/m³)
1881
Visual geometric albedo
0.21
Semimajor axis (km)
1.22185e+006
Period (days)
15.945421
Orbital inclination (deg)
0.33
Orbital eccentricity
0.0292
***GROUP***
Iapetus
Mass (kg)
1.59e+021
Radius (km)
718
Mean density (kg/m³)
1020
Semimajor axis (km)
3.5613e+006
Period (days)
59.030
Orbital inclination (deg)
7.52
Orbital eccentricity
0.0283
**GROUP**
Uranus Satellites
***GROUP***
Miranda
Mass (kg)
6.59e+019
Mean density (kg/m³)
1200
Visual geometric albedo
0.27
Semimajor axis (km)
1.298e+005
Period (days)
1.413
Orbital inclination (deg)
4.22
Orbital eccentricity
0.0027
***GROUP***
Ariel
Mass (kg)
1.353e21
Mean density (kg/m³)
1670
Visual geometric albedo
0.34
Semimajor axis (km)
1.912e+005
Period (days)
2.520
Orbital inclination (deg)
0.31
Orbital eccentricity
0.0034
***GROUP***
Umbriel
Mass (kg)
1.172e+021
Radius (km)
584.7
Mean density (kg/m³)
1400
Visual geometric albedo
0.18
Semimajor axis (km)
2.660e+005
Period (days)
4.144
Orbital inclination (deg)
0.36
Orbital eccentricity
0.0050
***GROUP***
Titania
Mass (kg)
3.527e21
Radius (km)
788.9
Mean density (kg/m³)
1710
Visual geometric albedo
0.27
Semimajor axis (km)
4.358e5
Period (days)
8.706
Orbital inclination (deg)
0.10
Orbital eccentricity
0.0022
***GROUP***
Oberon
Mass (kg)
3.014e21
Radius (km)
761.4
Mean density (kg/m³)
1630
Visual geometric albedo
0.24
Semimajor axis (km)
5.826e+005
Period (days)
13.463
Orbital inclination (deg)
0.10
Orbital eccentricity
0.0008
**GROUP**
Neptune Satellites
***GROUP***
Naiad
Radius (km)
29
Visual geometric albedo
0.06
Semimajor axis (km)
4.8227e+004
Period (days)
0.294396
Orbital inclination (deg)
4.74
Orbital eccentricity
0.0
***GROUP***
Thalassa
Radius (km)
40
Visual geometric albedo
0.06
Semimajor axis (km)
5.0075e+004
Period (days)
0.311485
Orbital inclination (deg)
0.21
Orbital eccentricity
0.0
***GROUP***
Despina
Radius (km)
74
Visual geometric albedo
0.06
Semimajor axis (km)
5.2526e+004
Period (days)
0.335655
Orbital inclination (deg)
0.07
Orbital eccentricity
0.0
***GROUP***
Galatea
Radius (km)
79
Visual geometric albedo
0.06
Semimajor axis (km)
6.1953e+004
Period (days)
4.28745
Orbital inclination (deg)
0.05
Orbital eccentricity
0.0
***GROUP***
Larissa
Visual geometric albedo
0.06
Semimajor axis (km)
7.3548e+004
Period (days)
0.554654
Orbital inclination (deg)
0.20
Orbital eccentricity
0.0
***GROUP***
Proteus
Visual geometric albedo
0.06
Semimajor axis (km)
1.17647e+005
Period (days)
1.122315
Orbital inclination (deg)
0.55
Orbital eccentricity
0.0
***GROUP***
Triton
Mass (kg)
2.147e22
Radius (km)
1352.6
Mean density (kg/m³)
2054
Visual geometric albedo
0.7
Semimajor axis (km)
3.5476e+005
Period (days)
5.876854
Orbital inclination (deg)
156.834
***GROUP***
Nereid
Radius (km)
170
Visual geometric albedo
0.2
Semimajor axis (km)
5.5134e+006
Period (days)
360.13619
Orbital inclination (deg)
7.23
Orbital eccentricity
0.7512
**GROUP**
Pluto Satellites
***GROUP***
Charon
Mass (kg)
1.7e+021
Equatorial radius (km)
586
Mean density (km/m³)
1800
Surface gravity (m/s²)
0.21
Escape velocity (km/s)
0.58
albedo
0.375
Mean distance-pluto (km)
19405
Orbital inclination (deg)
96.56
Orbital eccentricity
0.0
Sidereal orbit period (days)
6.387
*GROUP*
Elements
**GROUP**
A to B
***GROUP***
Actinium (Ac)
Atomic number
89
Atomic mass (g/mol)
227.0278
***GROUP***
Silver (Ag)
Atomic number
47
Atomic mass (g/mol)
107.87
Boiling point (°C)
2210
Melting point (°C)
960.8
Density (g/cm³)
10.5
Heat vapororization (kJ/mol)
60.7
Heat fusion (kJ/mol)
2.7
Electrical conductivity (s/m)
0.616
Thermal conductivity (W/m°K)
0.98
Heat capacity (J/mol°K)
0.056
***GROUP***
Aluminum (Al)
Atomic number
13
Atomic mass (g/mol)
26.9815
Boiling point (°C)
2450
Melting point (°C)
660
Density (g/cm³)
2.7
Heat vapororization (kJ/mol)
67.9
Heat fusion (kJ/mol)
2.55
Electrical conductivity (s/m)
0.382
Thermal conductivity (W/m°K)
0.5
Heat capacity (J/mol°K)
0.215
***GROUP***
Americium (Am)
Atomic number
95
Atomic mass (g/mol)
243.0614
***GROUP***
argon (Ar)
Atomic number
18
Atomic mass (g/mol)
39.948
Boiling point (°C)
-185.8
Melting point (°C)
-189.4
Density (g/cm³)
1.4
Heat vapororization (kJ/mol)
1.56
Heat fusion (kJ/mol)
0.281
Thermal conductivity (W/m°K)
4e-005
Heat capacity (J/mol°K)
0.125
***GROUP***
Arsenic (As)
Atomic number
33
Atomic mass (g/mol)
74.992
Boiling point (°C)
613
Melting point (°C)
817
Density (g/cm³)
5.72
Heat vapororization (kJ/mol)
7.75
Heat fusion (kJ/mol)
6.62
Electrical conductivity (s/m)
0.029
Heat capacity (J/mol°K)
0.082
***GROUP***
Astatine (At)
Atomic number
85
Atomic mass (g/mol)
209.987
***GROUP***
Gold (Au)
Atomic number
79
Atomic mass (g/mol)
196.967
Boiling point (°C)
2970
Melting point (°C)
1063
Density (g/cm³)
19.3
Heat vapororization (kJ/mol)
81.8
Heat fusion (kJ/mol)
3.03
Electrical conductivity (s/m)
0.42
Thermal conductivity (W/m°K)
0.71
Heat capacity (J/mol°K)
0.031
***GROUP***
Boron (B)
Atomic number
5
Atomic mass (g/mol)
10.811
Melting point (°C)
2030
Density (g/cm³)
2.34
Heat vapororization (kJ/mol)
128
Heat fusion (kJ/mol)
5.3
Electrical conductivity (s/m)
10e-012
Heat capacity (J/mol°K)
0.309
***GROUP***
Barium (Ba)
Atomic number
56
Atomic mass (g/mol)
137.34
Boiling point (°C)
1640
Melting point (°C)
714
Density (g/cm³)
3.5
Heat vapororization (kJ/mol)
35.7
Heat fusion (kJ/mol)
1.83
Electrical conductivity (s/m)
0.016
Heat capacity (J/mol°K)
0.068
***GROUP***
Beryllium (Be)
Atomic number
4
Atomic mass (g/mol)
9.0122
Boiling point (°C)
2770
Melting point (°C)
1277
Density (g/cm³)
1.85
Heat vapororization (kJ/mol)
73.9
Heat fusion (kJ/mol)
2.8
Electrical conductivity (s/m)
0.25
Thermal conductivity (W/m°K)
0.38
Heat capacity (J/mol°K)
0.45
***GROUP***
Bohrium (Bh)
Atomic number
107
Atomic mass (g/mol)
270
Oxidation states
7
***GROUP***
Bismut (Bi)
Atomic number
83
Atomic mass (g/mol)
208.98
Boiling point (°C)
1560
Melting point (°C)
271.3
Density (g/cm³)
9.8
Heat vapororization (kJ/mol)
42.7
Heat fusion (kJ/mol)
2.6
Electrical conductivity (s/m)
0.009
Thermal conductivity (W/m°K)
0.02
Heat capacity (J/mol°K)
0.034
***GROUP***
Berkelium (Bk)
Atomic number
97
Atomic mass (g/mol)
247.0703
***GROUP***
Bromine (Br)
Atomic number
35
Atomic mass (g/mol)
79.909
Boiling point (°C)
58
Melting point (°C)
-7.2
Density (g/cm³)
3.12
Heat vapororization (kJ/mol)
3.58
Heat fusion (kJ/mol)
1.26
Electrical conductivity (s/m)
10e-018
Heat capacity (J/mol°K)
0.07
**GROUP**
C to D
***GROUP***
Carbon (C)
Atomic number
6
Atomic mass (g/mol)
12.0112
Boiling point (°C)
4830
Melting point (°C)
3727
Density (g/cm³)
2.26
Heat vapororization (kJ/mol)
171.7
Electrical conductivity (s/m)
0.0007
Thermal conductivity (W/m°K)
0.057
Heat capacity (J/mol°K)
0.165
***GROUP***
Calcium (Ca)
Atomic number
20
Atomic mass (g/mol)
40.08
Boiling point (°C)
1440
Melting point (°C)
838
Density (g/cm³)
1.55
Heat vapororization (kJ/mol)
36.74
Heat fusion (kJ/mol)
2.1
Electrical conductivity (s/m)
0.218
Thermal conductivity (W/m°K)
0.3
Heat capacity (J/mol°K)
0.149
***GROUP***
Cadmium (Cd)
Atomic number
48
Atomic mass (g/mol)
112.4
Boiling point (°C)
765
Melting point (°C)
320.9
Density (g/cm³)
8.65
Heat vapororization (kJ/mol)
23.9
Heat fusion (kJ/mol)
1.46
Electrical conductivity (s/m)
0.146
Thermal conductivity (W/m°K)
0.22
Heat capacity (J/mol°K)
0.055
***GROUP***
Cerium (Ce)
Atomic number
58
Atomic mass (g/mol)
140.12
Boiling point (°C)
3468
Melting point (°C)
795
Density (g/cm³)
6.67
Heat vapororization (kJ/mol)
95
Heat fusion (kJ/mol)
1.2
Electrical conductivity (s/m)
0.013
Thermal conductivity (W/m°K)
0.026
Heat capacity (J/mol°K)
0.042
***GROUP***
Californium (Cf)
Atomic number
98
Atomic mass (g/mol)
251.0796
***GROUP***
Chlorine (Cl)
Atomic number
17
Atomic mass (g/mol)
35.453
Boiling point (°C)
-34.7
Melting point (°C)
-101
Density (g/cm³)
1.56
Heat vapororization (kJ/mol)
2.44
Heat fusion (kJ/mol)
0.77
Thermal conductivity (W/m°K)
2e-005
Heat capacity (J/mol°K)
0.116
***GROUP***
Curium (Cm)
Atomic number
96
Atomic mass (g/mol)
247.0704
***GROUP***
Cobalt (Co)
Atomic number
27
Atomic mass (g/mol)
58.933
Boiling point (°C)
2900
Melting point (°C)
1495
Density (g/cm³)
8.9
Heat vapororization (kJ/mol)
93
Heat fusion (kJ/mol)
3.64
Electrical conductivity (s/m)
0.16
Thermal conductivity (W/m°K)
0.16
Heat capacity (J/mol°K)
0.099
***GROUP***
Chromium (Cr)
Atomic number
24
Atomic mass (g/mol)
51.996
Boiling point (°C)
2665
Melting point (°C)
1875
Density (g/cm³)
7.19
Heat vapororization (kJ/mol)
72.97
Heat fusion (kJ/mol)
3.3
Electrical conductivity (s/m)
0.078
Thermal conductivity (W/m°K)
0.16
Heat capacity (J/mol°K)
0.11
***GROUP***
Cesium (Cs)
Atomic number
55
Atomic mass (g/mol)
132.905
Boiling point (°C)
690
Melting point (°C)
28.7
Density (g/cm³)
1.9
Heat vapororization (kJ/mol)
16.3
Heat fusion (kJ/mol)
0.5
Electrical conductivity (s/m)
0.053
Heat capacity (J/mol°K)
0.052
***GROUP***
Copper (Cu)
Atomic number
29
Atomic mass (g/mol)
63.54
Boiling point (°C)
2595
Melting point (°C)
1083
Density (g/cm³)
8.96
Heat vapororization (kJ/mol)
72.8
Heat fusion (kJ/mol)
3.11
Electrical conductivity (s/m)
0.593
Thermal conductivity (W/m°K)
0.94
Heat capacity (J/mol°K)
0.092
***GROUP***
Dubnium (Db)
Atomic number
105
Atomic mass (g/mol) 
268
***GROUP***
Darmstadtium (Ds)
Atomic number
110
Atomic mass (g/mol)
281
***GROUP***
Dysprosium (Dy)
Atomic number
66
Atomic mass (g/mol)
162.5
Boiling point (°C)
2600
Melting point (°C)
1407
Density (g/cm³)
8.54
Heat vapororization (kJ/mol)
67
Heat fusion (kJ/mol)
4.1
Electrical conductivity (s/m)
0.011
Thermal conductivity (W/m°K)
0.024
Heat capacity (J/mol°K)
0.041
**GROUP**
E to G
***GROUP***
Erbium (Er)
Atomic number
68
Atomic mass (g/mol)
167.26
Boiling point (°C)
2900
Melting point (°C)
1497
Density (g/cm³)
9.05
Heat vapororization (kJ/mol)
67
Heat fusion (kJ/mol)
4.1
Electrical conductivity (s/m)
0.012
Thermal conductivity (W/m°K)
0.023
Heat capacity (J/mol°K)
0.04
***GROUP***
Einsteinium (Es)
Atomic number
99
Atomic mass (g/mol)
254.0881
***GROUP***
Europium (Eu)
Atomic number
63
Atomic mass (g/mol)
151.96
Boiling point (°C)
1493
Melting point (°C)
826
Density (g/cm³)
5.26
Heat vapororization (kJ/mol)
42
Heat fusion (kJ/mol)
2.2
Electrical conductivity (s/m)
0.012
Heat capacity (J/mol°K)
0.039
***GROUP***
Flourine (F)
Atomic number
9
Atomic mass (g/mol)
18.9984
Boiling point (°C)
-188.2
Melting point (°C)
-219.6
Density (g/cm³)
1.505
Heat vapororization (kJ/mol)
0.755
Heat fusion (kJ/mol)
0.061
Heat capacity (J/mol°K)
0.18
***GROUP***
Iron (Fe)
Atomic number
26
Atomic mass (g/mol)
55.847
Boiling point (°C)
3000
Melting point (°C)
1536
Density (g/cm³)
7.86
Heat vapororization (kJ/mol)
84.6
Heat fusion (kJ/mol)
3.67
Electrical conductivity (s/m)
0.1
Thermal conductivity (W/m°K)
0.18
Heat capacity (J/mol°K)
0.11
***GROUP***
Fermium (Fm)
Atomic number
100
Atomic mass (g/mol)
257.0951
***GROUP***
Francium (Fr)
Atomic number
87
Atomic mass (g/mol)
223.0189
***GROUP***
Gallium (Ga)
Atomic number
31
Atomic mass (g/mol)
69.72
Boiling point (°C)
2237
Melting point (°C)
29.8
Density (g/cm³)
5.91
Heat fusion (kJ/mol)
1.34
Electrical conductivity (s/m)
0.058
Heat capacity (J/mol°K)
0.079
***GROUP***
Gadolinium (Gd)
Atomic number
64
Atomic mass (g/mol)
157.25
Boiling point (°C)
3000
Melting point (°C)
1312
Density (g/cm³)
7.89
Heat vapororization (kJ/mol)
72
Heat fusion (kJ/mol)
3.7
Electrical conductivity (s/m)
0.007
Thermal conductivity (W/m°K)
0.021
Heat capacity (J/mol°K)
0.071
***GROUP***
Geranium (Ge)
Atomic number
32
Atomic mass (g/mol)
72.59
Boiling point (°C)
2830
Melting point (°C)
937.4
Density (g/cm³)
5.32
Heat vapororization (kJ/mol)
68
Heat fusion (kJ/mol)
7.6
Electrical conductivity (s/m)
0.022
Thermal conductivity (W/m°K)
0.14
Heat capacity (J/mol°K)
0.073
**GROUP**
H to L
***GROUP***
Hydrogen (H)
Atomic number
1
Atomic mass (g/mol)
1.008
Boiling point (°C)
-252.7
Melting point (°C)
-259.2
Density (g/cm³)
0.071
Heat vapororization (kJ/mol)
0.108
Heat fusion (kJ/mol)
0.014
Thermal conductivity (W/m°K)
0.0004
Heat capacity (J/mol°K)
3.45
***GROUP***
Helium (He)
Atomic number
2
Atomic mass (g/mol)
4.0026
Boiling point (°C)
-268.9
Melting point (°C)
-269.7
Density (g/cm³)
0.126
Heat vapororization (kJ/mol)
0.02
Heat fusion (kJ/mol)
0.0005
Thermal conductivity (W/m°K)
0.0003
Heat capacity (J/mol°K)
1.25
***GROUP***
Hafnium (Hf)
Atomic number
72
Atomic mass (g/mol)
178.49
Boiling point (°C)
5400
Melting point (°C)
2222
Density (g/cm³)
13.1
Heat vapororization (kJ/mol)
155
Heat fusion (kJ/mol)
5.2
Electrical conductivity (s/m)
0.031
Thermal conductivity (W/m°K)
0.22
Heat capacity (J/mol°K)
0.035
***GROUP***
Mercury (Hg)
Atomic number
80
Atomic mass (g/mol)
200.59
Boiling point (°C)
357
Melting point (°C)
-38.4
Density (g/cm³)
13.6
Heat vapororization (kJ/mol)
13.9
Heat fusion (kJ/mol)
0.56
Electrical conductivity (s/m)
0.011
Thermal conductivity (W/m°K)
0.02
Heat capacity (J/mol°K)
0.033
***GROUP***
Holmium (Ho)
Atomic number
67
Atomic mass (g/mol)
164.93
Boiling point (°C)
2600
Melting point (°C)
1461
Density (g/cm³)
8.8
Heat vapororization (kJ/mol)
67
Heat fusion (kJ/mol)
4.1
Electrical conductivity (s/m)
0.011
Heat capacity (J/mol°K)
0.039
***GROUP***
Hassium (Hs)
Atomic number
108
Atomic weight
277
Oxidation states
8
***GROUP***
Iodine (I)
Atomic number
53
Atomic mass (g/mol)
126.904
Boiling point (°C)
183
Melting point (°C)
113.7
Density (g/cm³)
4.94
Heat vapororization (kJ/mol)
5.2
Heat fusion (kJ/mol)
1.87
Electrical conductivity (s/m)
10e-015
Thermal conductivity (W/m°K)
0.001
Heat capacity (J/mol°K)
0.052
***GROUP***
Indium (In)
Atomic number
49
Atomic mass (g/mol)
114.82
Boiling point (°C)
2000
Melting point (°C)
156.2
Density (g/cm³)
7.31
Heat vapororization (kJ/mol)
53.7
Heat fusion (kJ/mol)
0.78
Electrical conductivity (s/m)
0.111
Thermal conductivity (W/m°K)
0.057
Heat capacity (J/mol°K)
0.057
***GROUP***
Iridium (Ir)
Atomic number
77
Atomic mass (g/mol)
192.22
***GROUP***
Potasium (°K)
Atomic number
19
Atomic mass (g/mol)
39.102
Boiling point (°C)
760
Melting point (°C)
63.7
Density (g/cm³)
0.86
Heat vapororization (kJ/mol)
18.9
Heat fusion (kJ/mol)
0.55
Electrical conductivity (s/m)
0.143
Thermal conductivity (W/m°K)
0.23
Heat capacity (J/mol°K)
0.177
***GROUP***
Krypton (Kr)
Atomic number
36
Atomic mass (g/mol)
83.8
Boiling point (°C)
-152
Melting point (°C)
-157.3
Density (g/cm³)
2.6
Heat vapororization (kJ/mol)
2.16
Heat fusion (kJ/mol)
0.39
Thermal conductivity (W/m°K)
2e-5
***GROUP***
Lanthium (La)
Atomic number
57
Atomic mass (g/mol)
138.91
Boiling point (°C)
3470
Melting point (°C)
920
Density (g/cm³)
6.17
Heat vapororization (kJ/mol)
96
Heat fusion (kJ/mol)
1.5
Electrical conductivity (s/m)
0.017
Thermal conductivity (W/m°K)
0.033
Heat capacity (J/mol°K)
0.045
***GROUP***
Lithium (Li)
Atomic number
3
Atomic mass (g/mol)
6.939
Boiling point (°C)
1330
Melting point (°C)
180.5
Density (g/cm³)
0.53
Heat vapororization (kJ/mol)
32.48
Heat fusion (kJ/mol)
0.72
Electrical conductivity (s/m)
0.108
Thermal conductivity (W/m°K)
0.17
Heat capacity (J/mol°K)
0.79
***GROUP***
Lawrencium (Lr)
Atomic number
103
Atomic mass (g/mol)
262
***GROUP***
Lutetium (Lu)
Atomic number
71
Atomic mass (g/mol)
174.97
Boiling point (°C)
3327
Melting point (°C)
1652
Density (g/cm³)
9.84
Heat vapororization (kJ/mol)
90
Heat fusion (kJ/mol)
4.6
Electrical conductivity (s/m)
0.015
Heat capacity (J/mol°K)
0.037
**GROUP**
M to N
***GROUP***
Mendelevium (Md)
Atomic number
101
Atomic mass (g/mol)
257.0956
***GROUP***
Magnesium (Mg)
Atomic number
12
Atomic mass (g/mol)
24.312
Boiling point (°C)
1107
Melting point (°C)
650
Density (g/cm³)
1.74
Heat vapororization (kJ/mol)
32.517
Heat fusion (kJ/mol)
2.14
Electrical conductivity (s/m)
0.224
Thermal conductivity (W/m°K)
0.38
Heat capacity (J/mol°K)
0.25
***GROUP***
Manganese (Mn)
Atomic number
25
Atomic mass (g/mol)
54.938
Boiling point (°C)
2150
Melting point (°C)
1245
Density (g/cm³)
7.43
Heat vapororization (kJ/mol)
53.7
Heat fusion (kJ/mol)
3.5
Electrical conductivity (s/m)
0.054
Heat capacity (J/mol°K)
0.115
***GROUP***
Molybdenum (Mo)
Atomic number
42
Atomic mass (g/mol)
95.94
Boiling point (°C)
5560
Melting point (°C)
2610
Density (g/cm³)
10.2
Heat vapororization (kJ/mol)
128
Heat fusion (kJ/mol)
6.6
Electrical conductivity (s/m)
0.19
Thermal conductivity (W/m°K)
0.35
Heat capacity (J/mol°K)
0.061
***GROUP***
Meitnerium (Mt)
Atomic number
109
Atomic mass (g/mol)
276
***GROUP***
Nitrogen (N)
Atomic number
7
Atomic mass (g/mol)
14.0067
Boiling point (°C)
-195.8
Melting point (°C)
-210
Density (g/cm³)
0.81
Heat vapororization (kJ/mol)
0.666
Heat fusion (kJ/mol)
0.086
Thermal conductivity (W/m°K)
6e(-5)
Heat capacity (J/mol°K)
0.247
***GROUP***
Sodium (Na)
Atomic number
11
Atomic mass (g/mol)
22.9898
Boiling point (°C)
892
Melting point (°C)
97.8
Density (g/cm³)
0.97
Heat vapororization (kJ/mol)
24.12
Heat fusion (kJ/mol)
0.62
Electrical conductivity (s/m)
0.218
Thermal conductivity (W/m°K)
0.32
Heat capacity (J/mol°K)
0.295
***GROUP***
Niobium (Nb)
Atomic number
41
Atomic mass (g/mol)
92.906
Boiling point (°C)
3300
Melting point (°C)
2468
Density (g/cm³)
8.4
Heat fusion (kJ/mol)
6.4
Electrical conductivity (s/m)
0.08
Thermal conductivity (W/m°K)
0.125
Heat capacity (J/mol°K)
0.065
***GROUP***
Neodymium (Nd)
Atomic number
60
Atomic mass (g/mol)
144.24
Boiling point (°C)
3027
Melting point (°C)
1024
Density (g/cm³)
7
Heat vapororization (kJ/mol)
69
Heat fusion (kJ/mol)
1.7
Electrical conductivity (s/m)
0.013
Thermal conductivity (W/m°K)
0.031
Heat capacity (J/mol°K)
0.045
***GROUP***
Neon (Ne)
Atomic number
10
Atomic mass (g/mol)
20.183
Boiling point (°C)
-246
Melting point (°C)
-248.6
Density (g/cm³)
1.2
Heat vapororization (kJ/mol)
0.422
Heat fusion (kJ/mol)
0.08
Thermal conductivity (W/m°K)
0.0001
***GROUP***
Nickel (Ni)
Atomic number
28
Atomic mass (g/mol)
57.71
Boiling point (°C)
2730
Melting point (°C)
1453
Density (g/cm³)
8.9
Heat vapororization (kJ/mol)
91
Heat fusion (kJ/mol)
4.21
Electrical conductivity (s/m)
0.145
Thermal conductivity (W/m°K)
0.22
Heat capacity (J/mol°K)
0.105
***GROUP***
Nobelium (No)
Atomic number
102
Atomic mass (g/mol)
255.0933
***GROUP***
Neptunium (Np)
Atomic number
93
Atomic mass (g/mol)
237
Melting point (°C)
637
Density (g/cm³)
19.5
Heat vapororization (kJ/mol)
94.3
**GROUP**
O to P
***GROUP***
Oxygen (O)
Atomic number
8
Atomic mass (g/mol)
15.9994
Boiling point (°C)
-183
Melting point (°C)
-218.8
Density (g/cm³)
1.14
Heat vapororization (kJ/mol)
0.815
Heat fusion (kJ/mol)
0.053
Thermal conductivity (W/m°K)
6e-005
Heat capacity (J/mol°K)
0.218
***GROUP***
Osmium (Os)
Atomic number
76
Atomic mass (g/mol)
190.2
Boiling point (°C)
5500
Melting point (°C)
3000
Density (g/cm³)
22.6
Heat vapororization (kJ/mol)
162
Heat fusion (kJ/mol)
6.4
Electrical conductivity (s/m)
0.11
Heat capacity (J/mol°K)
0.031
***GROUP***
Phosphorus (P)
Atomic number
15
Atomic mass (g/mol)
30.984
***GROUP***
Protactium (Pa)
Atomic number
91
Atomic mass (g/mol)
231.0359
***GROUP***
Lead (Pb)
Atomic number
82
Atomic mass (g/mol)
207.19
Boiling point (°C)
1725
Melting point (°C)
327.4
Density (g/cm³)
11.4
Heat vapororization (kJ/mol)
42.2
Heat fusion (kJ/mol)
1.22
Electrical conductivity (s/m)
0.046
Thermal conductivity (W/m°K)
0.083
Heat capacity (J/mol°K)
0.031
***GROUP***
Palladium (Pd)
Atomic number
46
Atomic mass (g/mol)
106.4
Boiling point (°C)
3980
Melting point (°C)
1552
Density (g/cm³)
12
Heat vapororization (kJ/mol)
90
Heat fusion (kJ/mol)
4
Electrical conductivity (s/m)
0.093
Thermal conductivity (W/m°K)
0.17
Heat capacity (J/mol°K)
0.058
***GROUP***
Promethium (Pm)
Atomic number
61
Atomic mass (g/mol)
144.9128
***GROUP***
Polonium (Po)
Atomic number
84
Atomic mass (g/mol)
208.98
***GROUP***
Praseodymium (Pr)
Atomic number
59
Atomic mass (g/mol)
140.907
Boiling point (°C)
3127
Melting point (°C)
935
Density (g/cm³)
6.77
Heat vapororization (kJ/mol)
79
Heat fusion (kJ/mol)
1.6
Electrical conductivity (s/m)
0.015
Thermal conductivity (W/m°K)
0.028
Heat capacity (J/mol°K)
0.048
***GROUP***
Plutonium (Pu)
Atomic number
94
Atomic mass (g/mol)
242
Boiling point (°C)
3235
Melting point (°C)
640
Heat vapororization (kJ/mol)
87.2
***GROUP***
Platinum (Pt)
Atomic number
78
Atomic mass (g/mol)
195.09
Boiling point (°C)
4530
Melting point (°C)
1769
Density (g/cm³)
21.4
Heat vapororization (kJ/mol)
122
Heat fusion (kJ/mol)
4.7
Electrical conductivity (s/m)
0.095
Thermal conductivity (W/m°K)
0.17
Heat capacity (J/mol°K)
0.032
**GROUP**
R to S
***GROUP***
Radium (Ra)
Atomic number
88
Atomic mass (g/mol)
226
Melting point (°C)
700
Density (g/cm³)
5
Heat vapororization (kJ/mol)
27.4
Heat fusion (kJ/mol)
2.4
***GROUP***
Rubidium (Rb)
Atomic number
37
Atomic mass (g/mol)
85.47
Boiling point (°C)
688
Melting point (°C)
38.9
Density (g/cm³)
1.53
Heat vapororization (kJ/mol)
18.1
Heat fusion (kJ/mol)
0.55
Electrical conductivity (s/m)
0.08
Heat capacity (J/mol°K)
0.08
***GROUP***
Rhenium (Re)
Atomic number
75
Atomic mass (g/mol)
186.2
Boiling point (°C)
5900
Melting point (°C)
3180
Density (g/cm³)
21
Heat vapororization (kJ/mol)
152
Heat fusion (kJ/mol)
7.9
Electrical conductivity (s/m)
0.051
Thermal conductivity (W/m°K)
0.17
Heat capacity (J/mol°K)
0.033
***GROUP***
Rutherfordium (Rf)
Atomic number
104
Atomic mass (g/mol)
267
Oxidation states
4
***GROUP***
Roentgenium (Rg)
Atomic number
111
Atomic mass (g/mol)
180
***GROUP***
Rhodium (Rh)
Atomic number
45
Atomic mass (g/mol)
102.905
Boiling point (°C)
4500
Melting point (°C)
1966
Density (g/cm³)
12.4
Heat vapororization (kJ/mol)
127
Heat fusion (kJ/mol)
5.2
Electrical conductivity (s/m)
0.22
Thermal conductivity (W/m°K)
0.21
Heat capacity (J/mol°K)
0.059
***GROUP***
Radon (Rn)
Atomic number
86
Atomic mass (g/mol)
222.0176
***GROUP***
Ruthenium (Ru)
Atomic number
44
Atomic mass (g/mol)
101.07
Boiling point (°C)
4900
Melting point (°C)
2500
Density (g/cm³)
12.2
Heat vapororization (kJ/mol)
148
Heat fusion (kJ/mol)
6.1
Electrical conductivity (s/m)
0.1
Heat capacity (J/mol°K)
0.057
***GROUP***
Sulfur (S)
Atomic number
16
Atomic mass (g/mol)
32.064
Boiling point (°C)
444.6
Melting point (°C)
119
Density (g/cm³)
2.07
Heat vapororization (kJ/mol)
3.01
Heat fusion (kJ/mol)
0.34
Electrical conductivity (s/m)
10e-023
Thermal conductivity (W/m°K)
0.0007
Heat capacity (J/mol°K)
0.175
***GROUP***
Antimony (Sb)
Atomic number
51
Atomic mass (g/mol)
121.75
Boiling point (°C)
1380
Melting point (°C)
630.5
Density (g/cm³)
6.62
Heat vapororization (kJ/mol)
46.6
Heat fusion (kJ/mol)
4.74
Electrical conductivity (s/m)
0.026
Thermal conductivity (W/m°K)
0.05
Heat capacity (J/mol°K)
0.049
***GROUP***
Scandium (Sc)
Atomic number
21
Atomic mass (g/mol)
44.956
Boiling point (°C)
2730
Melting point (°C)
1539
Density (g/cm³)
3
Heat vapororization (kJ/mol)
81
Heat fusion (kJ/mol)
3.8
Electrical conductivity (s/m)
0.015
Thermal conductivity (W/m°K)
0.015
Heat capacity (J/mol°K)
0.13
***GROUP***
Selenium (Se)
Atomic number
34
Atomic mass (g/mol)
78.96
Boiling point (°C)
685
Melting point (°C)
217
Density (g/cm³)
4.79
Heat vapororization (kJ/mol)
3.34
Heat fusion (kJ/mol)
1.25
Electrical conductivity (s/m)
0.08
Thermal conductivity (W/m°K)
10e-5
Heat capacity (J/mol°K)
0.084
***GROUP***
Seaborgium (Sg)
Atomic number
106
Atomic mass (g/mol)
271
***GROUP***
Silicon (Si)
Atomic number
14
Atomic mass (g/mol)
28.086
Boiling point (°C)
2680
Melting point (°C)
1410
Density (g/cm³)
2.33
Heat vapororization (kJ/mol)
40.6
Heat fusion (kJ/mol)
11.1
Electrical conductivity (s/m)
0.1
Thermal conductivity (W/m°K)
0.2
Heat capacity (J/mol°K)
0.162
***GROUP***
Samarium (Sm)
Atomic number
62
Atomic mass (g/mol)
150.35
Boiling point (°C)
1900
Melting point (°C)
1072
Density (g/cm³)
7.54
Heat vapororization (kJ/mol)
46
Heat fusion (kJ/mol)
2.1
Electrical conductivity (s/m)
0.011
Heat capacity (J/mol°K)
0.042
***GROUP***
Tin (Sn)
Atomic number
50
Atomic mass (g/mol)
118.69
Boiling point (°C)
2270
Melting point (°C)
231.9
Density (g/cm³)
7.3
Heat vapororization (kJ/mol)
70
Heat fusion (kJ/mol)
1.72
Electrical conductivity (s/m)
0.088
Thermal conductivity (W/m°K)
0.16
Heat capacity (J/mol°K)
0.054
***GROUP***
Strontium (Sr)
Atomic number
38
Atomic mass (g/mol)
87.62
Boiling point (°C)
1380
Melting point (°C)
768
Density (g/cm³)
2.6
Heat vapororization (kJ/mol)
33.8
Heat fusion (kJ/mol)
2.1
Electrical conductivity (s/m)
0.043
Heat capacity (J/mol°K)
0.176
**GROUP**
T to U
***GROUP***
Tantalum (Ta)
Atomic number
73
Atomic mass (g/mol)
180.948
Boiling point (°C)
5425
Melting point (°C)
2996
Density (g/cm³)
16.6
Heat vapororization (kJ/mol)
180
Heat fusion (kJ/mol)
6.8
Electrical conductivity (s/m)
0.081
Thermal conductivity (W/m°K)
0.13
Heat capacity (J/mol°K)
0.036
***GROUP***
Terbium (Tb)
Atomic number
65
Atomic mass (g/mol)
158.924
Boiling point (°C)
2800
Melting point (°C)
1356
Density (g/cm³)
8.27
Heat vapororization (kJ/mol)
70
Heat fusion (kJ/mol)
3.9
Electrical conductivity (s/m)
0.009
Heat capacity (J/mol°K)
0.044
***GROUP***
Technetium (Tc)
Atomic number
43
Atomic mass (g/mol)
96.9062
***GROUP***
Tellurium (Te)
Atomic number
52
Atomic mass (g/mol)
127.6
***GROUP***
Thorium (Th)
Atomic number
90
Atomic mass (g/mol)
232.038
Boiling point (°C)
3850
Melting point (°C)
1750
Density (g/cm³)
11.7
Heat fusion (kJ/mol)
4.6
Electrical conductivity (s/m)
0.055
Heat capacity (J/mol°K)
0.034
***GROUP***
Titanium (Ti)
Atomic number
22
Atomic mass (g/mol)
47.9
Boiling point (°C)
3260
Melting point (°C)
1668
Density (g/cm³)
4.51
Heat vapororization (kJ/mol)
106.5
Heat fusion (kJ/mol)
3.7
Electrical conductivity (s/m)
0.024
Heat capacity (J/mol°K)
0.126
***GROUP***
Thallium (Tl)
Atomic number
81
Atomic mass (g/mol)
204.37
Boiling point (°C)
1457
Melting point (°C)
303
Density (g/cm³)
11.85
Heat vapororization (kJ/mol)
38.8
Heat fusion (kJ/mol)
1.02
Electrical conductivity (s/m)
0.055
Thermal conductivity (W/m°K)
0.093
Heat capacity (J/mol°K)
0.031
***GROUP***
Thulium (Tm)
Atomic number
69
Atomic mass (g/mol)
168.934
Boiling point (°C)
1727
Melting point (°C)
1545
Density (g/cm³)
9.33
Heat vapororization (kJ/mol)
59
Heat fusion (kJ/mol)
4.4
Electrical conductivity (s/m)
0.011
Heat capacity (J/mol°K)
0.038
***GROUP***
Uranium (U)
Atomic number
92
Atomic mass (g/mol)
238.03
Boiling point (°C)
3818
Melting point (°C)
1132
Density (g/cm³)
19.07
Heat vapororization (kJ/mol)
110
Heat fusion (kJ/mol)
2.7
Electrical conductivity (s/m)
0.034
Thermal conductivity (W/m°K)
0.064
Heat capacity (J/mol°K)
0.028
***GROUP***
Ununbium (Uub)
Atomic number
112
Atomic mass (g/mol)
185
***GROUP***
Ununhexium (Uuh)
Atomic number
116
Atomic mass (g/mol)
293
***GROUP***
Ununoctium (Uuo)
Atomic number
118
Atomic mass (g/mol)
294
Boiling point (°C)
50-110
***GROUP***
Ununpentium (Uup)
Atomic number
115
Atomic mass (g/mol)
288
***GROUP***
Ununquadium (Uuq)
Atomic number
114
Atomic mass (g/mol)
289
***GROUP***
Ununseptium (Uus)
Atomic number
117
***GROUP***
Ununtrium (Uut)
Atomic number
113
Atomic mass (g/mol)
284
**GROUP**
V to Z
***GROUP***
Vandium (V)
Atomic number
23
Atomic mass (g/mol)
50.942
Boiling point (°C)
3450
Melting point (°C)
1900
Density (g/cm³)
6.1
Heat vapororization (kJ/mol)
106
Heat fusion (kJ/mol)
4.2
Electrical conductivity (s/m)
0.04
Heat capacity (J/mol°K)
0.12
***GROUP***
Wolfram (W)
Atomic number
74
Atomic mass (g/mol)
183.85
Boiling point (°C)
5930
Melting point (°C)
3410
Density (g/cm³)
19.3
Heat vapororization (kJ/mol)
185
Heat fusion (kJ/mol)
8.05
Electrical conductivity (s/m)
0.181
Thermal conductivity (W/m°K)
0.4
Heat capacity (J/mol°K)
0.032
***GROUP***
Xenon (Xe)
Atomic number
54
Atomic mass (g/mol)
131.3
Boiling point (°C)
-108
Melting point (°C)
-111.9
Density (g/cm³)
3.06
Heat vapororization (kJ/mol)
3.02
Heat fusion (kJ/mol)
0.55
Thermal conductivity (W/m°K)
0.0001
***GROUP***
Yttrium (Y)
Atomic number
39
Atomic mass (g/mol)
88.9059
***GROUP***
Ytterbium (Yb)
Atomic number
70
Atomic mass (g/mol)
173.04
Boiling point (°C)
1427
Melting point (°C)
824
Density (g/cm³)
6.98
Heat vapororization (kJ/mol)
38
Heat fusion (kJ/mol)
1.8
Electrical conductivity (s/m)
0.035
Heat capacity (J/mol°K)
0.035
***GROUP***
Zinc (Zn)
Atomic number
30
Atomic mass (g/mol)
65.37
Boiling point (°C)
906
Melting point (°C)
419.5
Density (g/cm³)
7.14
Heat vapororization (kJ/mol)
27.4
Heat fusion (kJ/mol)
1.76
Electrical conductivity (s/m)
0.167
Thermal conductivity (W/m°K)
0.27
Heat capacity (J/mol°K)
0.0915
***GROUP***
Zirconium (Zr)
Atomic number
40
Atomic mass (g/mol)
91.22
Boiling point (°C)
3580
Melting point (°C)
1852
Density (g/cm³)
6.49
Heat vapororization (kJ/mol)
120
Heat fusion (kJ/mol)
4
Electrical conductivity (s/m)
0.024
Heat capacity (J/mol°K)
0.066
