Element Name: Helium
State (298 K): Gas
Uses: used in blimps
Atomic No.: 2
Atomic Mass: 4.003 g/mol
Density: 0.179 g/L
B.P.: 4.216 K
F.P.: 0.95 K
Electronic Configuration: 1s
2
Isotopes:
4
He 4.0026 amu (100.00%)
Electronegativity: ?
Radii: 128 pm (atomic)
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