Polonium (thing)

Polonium
Symbol: Po
Atomic Number: 84
Atomic Weight: 209 (most stable)
Boiling Point: ??? K
Melting Point: 527 K
Density at 300K: 9.3 g/cm³
Covalent radius: 1.53
Atomic radius: 1.53
Atomic volume: 22.70 cm³/mol
First ionization potental: 8.42 V
Specific heat capacity: ??? Jg^-1K^-1
Thermal conductivity: 20 Wm^-1K^-1
Electrical conductivity: 0.7*10⁶Ω^-1m^-1
Heat of fusion: 13 kJ/mol
Heat of vaporization: 120 kJ/mol
Electronegativity: 2.0 (Pauling's)

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