The element first used for fission in an atomic bomb is uranium.
A- bomb stands for Atomic Bomb, first tested and used in WWII.
First hydrogen bomb then nuclear missiles but they are never used because of the dropping of the atomic bombs on japan...
The first atomic bomb used against mankind exploded at 8.15 over Hiroshima.
Hiroshima was the first to be bombed in World War 2.
August 1945
The first bomb exploded, the Trinity test bomb, used plutonium. The first bomb deployed, dropped on Hiroshima, used uranium 235. The second bomb deployed, dropped on Nagasaki, used plutonium 239.
Hitler, he was dead before the Bomb was used in warfare.
Both Uranium & Plutonium were used.
when Soviets explode first atomic bomb
the first atomic bomb was dropped on Hiroshima on Monday august 6,1945. Later on august 9 a second bomb was dropped on Nagasaki japan.
if by bomb you mean atomic bomb, it was truman. otherwise bombs predate the existence of the US.