Iodine
| Atomic number: |
53 |
|
Atomic weight: |
126.90447 |
|
| Shells: |
2,8,18,18,7 |
|
Orbitals: |
[Kr] 4d10 5s2 5p5 |
|
| Melting point: |
113.5°C |
|
Boiling point: |
184.35°C @ 35 atmos. |
|
| Covalent radius: |
1.33 |
Å |
Atomic volume: |
25.74 |
cm³/mol |
| Atomic radius: |
1.32 |
Å |
Ionic radius: |
2.20 (-1) |
Å |
| Electronegativity: |
2.66 |
|
Oxidation states: |
(±1),5,7 |
|
| 1st ionization pot.: |
10.4513 |
V |
2nd ionization pot.: |
19.131 |
V |
| 3rd ionization pot.: |
33.0 |
V |
Specific heat: |
0.214 |
J/gK |
| Heat of fusion: |
7.824 |
kJ/mol |
Heat of vapor.: |
20.752 |
kJ/mol |
| Thermal conduct.: |
0.00449 |
W/cmK |
Electrical conduct.: |
8.0e-16 |
10^6/cm ohm |
| Density: |
4.93 |
g/cm³ |
Valence: |
1,3,5,7 |
|
