atomic number 63

1. 1.

   a bivalent and trivalent metallic element of the rare earth group

   SynonymseuropiumEu

   Broadermetallic element

Questions about atomic number 63

What does atomic number 63 mean?

atomic number 63 means "a bivalent and trivalent metallic element of the rare earth group".

What is another word for atomic number 63?

Close synonyms include europium, Eu. 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 63 a common word?

atomic number 63 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.