Countries want them, countries make the laws.
How to make nuclear bombs was solved over half a century ago.
It can.
yes
The nuclear material used to make the bombs was from Oak Ridge TN
nuclear bomb = plutonium + weapon
Uranium is the element commonly used to generate electricity in nuclear power plants and as the primary material for nuclear bombs. It undergoes nuclear reactions such as fission to release large amounts of energy.
Generally, no. But nations capable of making nuclear power plants may be able to extend the technology to make weapons.
You think to applications of nuclear physics.
countries make A-bombs because other countries do. if someone didn't have a bomb when one one of their enemies did, they could be blown away any time because the other country knows they can't retaliate. If you do have a bomb, the other guy won't use his because they know that if they do you'll use your bomb and you'd both die. Anyway, countries like the U.S. and Russia actually don't make A-Bombs, because they were "outmoded" by the H-Bomb, which is thermonuclear rather than just nuclear like the A-Bomb.
No, it is perfectly legal as long as it is used on your own property.
in pakistan Ridiculous! The first nuclear bombs were built at Los Alamos, NM in 1945.