Assertion: protactinium | /r/CapableOf | name derives
Facets:
value: from protos
type: OTHER
Source sentences:
text: Protactinium is an actinide (Z=91; atomic mass 231.0359); it name derives from protos (Greek for first) and actinium, because it most abundant isotope (231Pa) is parental to 227Ac.
text: Protactinium derived its name from the Greek protos, 'first', and actinium, which is produced through the radioactive decay of protactinium