Assertion: protactinium | /r/CapableOf | exist as a mono-oxo ion
Facets:
value: unlike the other pentavalent actinides
type: OTHER
Source sentences:
text: However, unlike the other pentavalent actinides, protactinium exists as a mono-oxo ion rather than the di-oxo ones archetypical of uranium, neptunium, plutonium and americium, which makes it a truly unique actinide.