Helium
by on
Helium
by on

Helium

Opkaldt efter solen, denne noble gas
er den koldeste vaeske

Molarmasse: 4,002602 g/mol
Antal elektroner: 2
Elektronegativitet: 0
Densitet: 0.1786 g/L
Smeltepunkt: - 272.20 Celcius
Kogepunkt: -268.928 Celcius

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