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
