Osmium
Os
Osmium
Transition Metal
Atomic number:
76
Atomic weight:
190.23
Shells:
2,8,18,32,14,2
Orbitals:
[Xe] 4f14 5d6 6s2
Melting point:
3054°C
Boiling point:
5027°C
Covalent radius:
1.26
Å
Atomic volume:
8.49
cm³/mol
Atomic radius:
1.92
Å
Ionic radius:
.63 (+4)
Å
Electronegativity:
2.2
Oxidation states:
2,3,(4),6,8
1st ionization pot.:
8.7
V
2nd ionization pot.:
--
V
3rd ionization pot.:
--
V
Specific heat:
0.13
J/gK
Heat of fusion:
31.80
kJ/mol
Heat of vapor.:
746.0
kJ/mol
Thermal conduct.:
0.876
W/cmK
Electrical conduct.:
0.109
10^6/cm ohm
Density:
22.40
g/cm³
Valence:
0,3,4,6,8
]
