Name:
Protactinium
Symbol:
Pa
Atomic Number:
91
Atomic Mass:
(231)
Atomic Volume:
??? cc/mol
Discovered By:
Fajans and Göhring
Discovery Date:
1913
Origin of Name:
Protactinium - (Greek) protos (first)
Toxicity:
???
Summary:
Not found free in nature. Protactinium is a alpha-emitter.
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