atomic number 2

1. 1.

   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)

   SynonymsheliumHe

   Broaderchemical elementnoble gas

Questions about atomic number 2

What does atomic number 2 mean?

atomic number 2 means "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)".

What is another word for atomic number 2?

Close synonyms include helium, He. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is atomic number 2 a common word?

atomic number 2 is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.