WordNet: Pa, atomic number 91, protactinium, protoactinium
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
- hypernym metal, metallic element
Pa
- (suomi) Pa (synonyymi)
atomic number 91
- (suomi) järjestysluku 91 (synonyymi)
protactinium
- (suomi) protaktinium (synonyymi)
protoactinium
- (suomi) protaktinium (synonyymi)