Three, one that was tested in the US, one was deployed at Hiroshima and the third at Nagasaki. Bombs were under construction, but no further weapons were ready for use by the surrender date. A fourth bomb was made by Los Alamos before Japan agreed to surrender, but did not arrive in San Francisco to be flown across the Pacific until August 18, four days after the Japanese agreed to surrender (but before the formal signing of the agreement which happened in September). This is confirmed by declassified documents obtained by Chuck Hansen via FOIA requests and summarized in his work Swords of Armageddon.
As 3 more bombs were scheduled for production and delivery in September (ibid.) it is almost certain that Los Alamos completed the first of these 3 within a few days before or after the formal signing. However documents on the completion date of this bomb have not been released. If they did complete this bomb prior to the signing, this would make five in total were built during WW2.
The next definite data in Swords of Armageddon gives bomb production up to the end of the 1946 Operation Crossroads: total bombs built 9, total bombs detonated 5, bombs remaining in stockpile 4.
Note: bombs of this era when built were not assembled. for example a MK-III Fatman came in two crates of parts and took 3 days of final assembly in the field before use.
After that the weapons race began and many atomic bombs were made.
bombs, maybe a few millionatomic bombs, two
Two atomic bombs were dropped on Japan during World War II.
Two atomic bombs were dropped on Japan during WW2, one on Hiroshima and another on Nagasaki.
its over nine thousand
2 atomic bombs and 2 million HE bombs and 5 million incendiary fire bombs
By the end of 1949 the US had built a total of 178 atomic bombs, tested 6 atomic bombs, used 2 atomic bombs in combat, resulting in a stockpile of 170 atomic bombs.
They used 3 atomic bombs
An atomic bomb has been used twice against another country, and that was when the U.S. dropped two bombs on Japan during World War II.
None, nobody had either the material or infrastructure to do so.
None. The first atomic bomb was dropped decades after World War 1 finished. Atomic bombs weren't used in war until World War II.
The three atomic bombs were not made on any single specific days. It took them many years to develop and test the atomic bomb. See link below.
It was important to many romans in the central times. His acts with atomic bombs were great to. The atomic bombs were cannon balls.
The Manhattan Project began in 1942 and ended in August 1947, with the establishment of the Atomic Energy Commission. A rough estimate is that in this time 15 to 20 atomic bombs had been built, with 5 of those detonated, leaving a stockpile by the time the Manhattan Project ended of 10 to 15 atomic bombs.
The purposes of atomic bombs are now to ensure mutually assured destruction. So many countries have atomic bombs now that if they were to launch one they would be destroyed by someone else.
As both atomic bombs and supernovas vary in yield, this question has no single answer.
Two, Hiroshima and Nagasaki in Japan. There have been test firing of atomic bombs by many countries but not in populated areas.
See: Atomic bombings of Hiroshima and Nagasaki
At the time of the Korean War, the US had about 2,400 atomic bombs, the Soviet Union about 200. But none of them were transported to Korea or otherwise used during the Korean War.
At this time, 6000 to 7000.