Osmium
Atomic number
76
Atomic weight
190.23
Discovery (year)
1804
Atomic radius (A)
1.35
Melting point (
o
C)
2700
Boiling point (
o
C)
5500
Density (g/cm
3
)
22.5
Specific heat (cal/g
o
C)
0.031
Ionization potential (eV)
8.7
Electron Affinity (eV)
1.1
