Hvordan man uttaler "atomic number 2"

• "atomic number 2" uttalt på Engelsk.

Betydninger og definisjoner av "atomic number 2"

Noun

a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)

Synonymer:

• helium
• He
• atomic number 2