The United States
The first atomic bomb, "Little Boy," contained uranium-235 as its radioactive isotope.
Russia developed its own atomic bomb by conducting extensive research and espionage on the American nuclear program. They successfully tested their first atomic bomb on August 29, 1949, becoming the second country to possess nuclear weapons after the United States.
While the atomic bomb was not made in Oak Ridge, Tennessee, the uranium used in the bomb was enriched at the Oak Ridge facility as part of the Manhattan Project during World War II. Oak Ridge played a significant role in the development of the atomic bomb by providing the enriched uranium needed for the bomb's construction.
The second atomic bomb was used on Nagasaki because Japan did not surrender after the first bomb on Hiroshima. The goal was to force Japan to surrender quickly and end World War II.
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.
The first atomic bomb was made in 1945, the first hydrogen bomb was made in 1952.
The first atomic bomb was made August 1945. My ? to you is," Why did they even start making those atomic bomb anyway?
We developed the first working atomic bomb but, GER. made up the idea.
The USA
US
Japan refused to surrender after the first atomic bomb.
China made the Atomic Bomb, no china did not make the atomic bomb. the united states made the abomb and it was called the mannhattan project
when Soviets explode first atomic bomb
The Enola Gay dropped the first atomic bomb.
The city of Hiroshima was the place where the first atomic bomb was dropped.
18th May1998, but its not atomic bomb (its nuclear bomb)
The first a-bomb called (Little Boy) was a uranium gun-type atomic bomb.The second a-bomb called (Fat Man) was a plutonium implosion-type bomb.