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
]