PERIODIC TABLE

Iridium

Atomic No. 77 Ir Iridium

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Properties

Atomic Number
77
Atomic Symbol
Ir
Atomic Mass
192.217
CAS No.
7439-88-5
Density
22.56 g/cm³
Series
transition metal
Melting Point
2,466°C
Boiling Point
4,428°C
Thermal Conductivity
1.5 W/cm °C
Heat of Fusion
26 kJ/mol
Heat of Vaporization
560 kJ/mol
Electronegativity
2.2 pauling
Crystal Structure
Cubic
Electrical Conductivity
2.1×107 S/m

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