atomic number 61

1. 1.

   a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium

   SynonymspromethiumPm

   Broadermetallic element

Questions about atomic number 61

What does atomic number 61 mean?

atomic number 61 means "a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium".

What is another word for atomic number 61?

Close synonyms include promethium, Pm. 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 61 a common word?

atomic number 61 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.