Hydrogen
| Atomic number: |
1 |
|
Atomic weight: |
1.00794 |
|
| Shells: |
1 |
|
Orbitals: |
1s1 |
|
| Melting point: |
-255.34°C |
|
Boiling point: |
-252.87°C |
|
| Covalent radius: |
0.32 |
Å |
Atomic volume: |
14.4 |
cm³/mol |
| Atomic radius: |
0.79 |
Å |
Ionic radius: |
1.54(+1) |
Å |
| Electronegativity: |
2.20 |
|
Oxidation states: |
±1 |
|
| 1st ionization pot.: |
13.5984 |
V |
2nd ionization pot.: |
-- |
V |
| 3rd ionization pot.: |
-- |
V |
Specific heat: |
14.304 |
J/gK |
| Heat of fusion: |
0.05868 |
kJ/mol |
Heat of vapor.: |
0.44936 |
kJ/mol |
| Thermal conduct.: |
0.001815 |
W/cmK |
Electrical conduct.: |
-- |
10^6/cm ohm |
| Density: |
0.00008988 |
g/cm³ |
Valence: |
1 |
|
