Category
noble gas
State at Room Temperature
gas
Electron Configuration
1s²
Valence Electrons
2
Lewis Dot:••
Oxidation States
0
Melting Point
0.95 K
-272.20°C
Boiling Point
4.222 K
-268.93°C
Density
0.0001785
g/cm³
Position in Table
Group 18Period 1s-block
Discovery
Historical Information
Discovered byPierre Janssen, Norman Lockyer
Year1868
Common Uses
Applications & Industries
Balloons, MRI machines, cryogenics, diving gas mixtures
Related Elements
Same group or period
Related Calculators
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