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Atomic Number 91
Definition of Atomic Number 91
1.
A short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
Noun
Synonyms for word "atomic number 91"
pa
protactinium
protoactinium
Semanticaly linked words with "atomic number 91"
metal
metallic element
Hyponims for word "atomic number 91"
metal
metallic element