Tantalum
Symbol:
Ta
Atomic Number: 73
Atomic Weight: 180.9479
Boiling Point: 5730 K
Melting Point: 3293 K
Density at 300K: 16.65 g/cm
3
Covalent radius: 1.34
Atomic radius: 2.09
Atomic
volume: 10.90 cm
3/mol
First
ionization potental: 7.89 V
Specific heat capacity: 0.14 Jg
-1K
-1
Thermal conductivity: 57.5 Wm
-1K
-1
Electrical conductivity: 8.1*10
6Ω
-1m
-1
Heat of fusion: 36 kJ/mol
Heat of vaporization: 373.0 kJ/mol
Electronegativity: 1.5 (Pauling's)