Assertion: protactinium | /r/HasProperty | element
Facets:
value: in the game
type: LOCATION
Source sentences:
text: Protactinium is an element in the game.
text: Protactinium, element 91, is one of the most rare of the naturally occurring elements and may well be the most difficult of all to extract from natural sources.
text: Protactinium is element 91.
text: Protactinium, element 91, was discovered in 1918 by German chemist Otto Hahn and physicist Lise Meitner.
text: Home Gallery Favourites Posts Shop Is protactinium (element 91) a metal, who discovered it, physical, chemical, atomic properties, what is Pa element used for.
text: While von Grosse's claim that Fermi was actually producing protactinium (element 91) was quickly tested and disproved, Noddack's proposal that the uranium had been shattered into two or more much smaller fragments was simply ignored by most because existing nuclear theory did not include a way for this to be possible.