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As the physics of nuclear explosives has not changed, pretty much the same elements as are used now. The main changes are not the elements, but the compounds that contain them (e.g. the chemical explosives have been replaced with safer ones, but both the old and new chemical explosives contain the same elements just in different arrangements.
Polonium is an element used in the neutron sources of all 4 atomic bombs built during World War 2 (Gadget, Little Boy, Fat Man, and an unnamed bomb that was never used) that is no longer used in modern nuclear explosives. Polonium based neutron sources have a shelf life of roughly 180 days due to radioactive decay. These were replaced by electrically activated tritium fusion based neutron sources sometime in the middle 1950s which have a shelf life of roughly 12 years due to radioactive decay.
Lithium is an element used in some modern nuclear explosives that was not used in world war 2, it is converted to tritium in those bombs for use as fusion fuel. The first use of lithium in a nuclear explosive was in 1953 by the USSR.
It is important to realize that many many elements other than the nuclear fuels must be used in a nuclear explosive to make it work.
What else can I help you with?
What elements was used in the atomic bombs?
The atomic bombs dropped on Hiroshima and Nagasaki in World War II used uranium-235 and plutonium-239 as their primary elements. The bomb dropped on Hiroshima (Little Boy) used uranium-235, while the bomb dropped on Nagasaki (Fat Man) used plutonium-239.
Why was the second atomic bomb used?
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.
Was the atomic bomb made in Oak Ridge?
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.
Who made the first atomic bomb?
The United States
The person who made the atomic bomb?
The atomic bomb was developed by a team of scientists led by J. Robert Oppenheimer as part of the Manhattan Project during World War II. Oppenheimer is often credited as the "father of the atomic bomb" due to his central role in its creation.
Was there a war before the first atomic bomb?
The world was going through world war two. The atomic bomb ended the war.
What was the atomic bomb created for?
the atomic bomb was created to end the world war 2!!
Why did they make the Atomic Bomb?
the atomic bomb was made to end the world war 2
Why did they make atomic bomb?
the atomic bomb was made to end the World War 2
In which world war was the atomic bomb made?
The Second World War.
Dropping the atomic bomb?
The atomic bomb was dropped on Hiroshima and Nagasaki in World War 2.
What world war was the atomic bomb in?
WWII
Did albert einstein build the atomic bomb to end world war 1?
No, Albert Einstein did not built an atomic bomb to end World War I
What was the name of the bomb that ended World War 2?
It was the Atomic bomb.
When was the a bomb used?
It was used in the world war two, its an atomic bomb!
What was the first bomb they use in world war 1?
the atomic bomb
Why is the atomic bomb important to World War 1?
The atomic bomb was sopower full that japan surrendered a couple days after the second bomb. This nuclear weapon is what led World war II to an end. Not World war I
