Lanthanum (thing)

Lanthanum
Symbol: La
Atomic Number: 57
Atomic Weight: 138.9055
Boiling Point: 3737 K
Melting Point: 1191 K
Density at 300K: 6.15 g/cm³
Covalent radius: 1.25
Atomic radius: 2.74
Atomic volume: 22.5 cm³/mol
First ionization potental: 5.58 V
Specific heat capacity: 0.19 J g^-1 K^-1
Thermal conductivity: 13.5 W m^-1 K^-1
Electrical conductivity: 1.9*10⁶Ω^-1 m^-1
Heat of fusion: 11.3 kJ/mol
Heat of vaporization: 399.57 kJ/mol
Electronegativity: 1.10 (Pauling's)

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