Iridium (Ir)
Atomic number
77
Mass number
192
Electronegativity
2.20
Covalent radius
1.27
Atomic radius
1.87
Melting point
2716.0
Boiling point
4701.0
Density
22.42
Specific heat
0.130
Electrical conductivity
0.197e6
Thermal conductivity
1.47