Helium (thing)

Symbol: He
Atomic Number: 2
Boiling Point: 4.216K
Melting Point: 0.95K
Density at 300K: 0.1785 g/cm³
Covalent radius: 0.93
Atomic radius: 0.49
Atomic volume: 31.80 cm³/mol
First ionization potental: 24.587 V
Specific heat capacity: 5.193 Jg^-1K^-1
Thermal conductivity: 0.152Wm^-1K^-1
Electrical conductivity: N/A
Heat of fusion: 0.021 kJ/mol
Heat of vaporization: 0.084 kJ/mol
Electronegativity: N/A

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