Radium
Symbol:
Ra
Atomic Number: 88
Atomic Weight: 226 (most stable)
Boiling Point: 1413 K
Melting Point: 973 K
Density at 300K: 5.0 g/cm
3
Covalent radius: ???
Atomic radius: ???
Atomic
volume: 45.2 cm
3/mol
First
ionization potental: 5.279 V
Specific heat capacity: 0.094 Jg
-1K
-1
Thermal conductivity: 18.6 Wm
-1K
-1
Electrical conductivity: 1.0*10
6Ω
-1m
-1
Heat of fusion: 8.37 kJ/mol
Heat of vaporization: 136.82 kJ/mol
Electronegativity: 0.89 (Pauling's)