Atomic number 91 synonyms
A rare, radioactive, metallic chemical element, one of the actinides, found in pitchblende: symbol, Pa; at. no. 91
Find another word for atomic number 91. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for atomic number 91, like: protactinium, protoactinium and p.a..