What was the fissionable material used in the bomb dropped at Nagasaki

1.	What was the fissionable material used in the bomb dropped at Nagasaki (Japan) in the year 1945 ?
A.	Uranium
B.	Plutonium
C.	Neptunium
D.	None of these
Answer» C. Neptunium

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What was the fissionable material used in the bomb dropped at Nagasaki (Japan) in the year 1945 ?

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