Chemical Element #2: Helium (He)

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Atomic Number: 2, Element Symbol: He, Element Name: Helium, Atomic Mass: 4.00260 u.

Detailed Properties:

Atomic Number:2
Element Symbol:He
Element Name:Helium
Electron Configuration:1s2
Atomic Mass:4.002600 u
Melting Point:0.95 K
Boiling Point:4.22 K

Stable Isotopes:

IsotopeMassAbundance
3He3.0160290.000001
4He4.0026030.999999

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2021-07-20, 106👍, 0💬