Two were used to end WW2. Since then thousands have been exploded in tests, but none in war.
Yes, plutonium is used in nuclear weapons.
In nuclear reactors used to generate electricity, and in many nuclear warheads.
12, 324 nuclear warheads are located in the United states. mind you not all of them are in a missile, they are merely the warheads.
As far as we know, no. The USSR did not maintain nuclear weapons in Lithuania.
The USA do
The UK is estimated to have a stockpile of approximately 160 active nuclear warheads and 225 nuclear warheads in total.
White phosphorus is often used in smoke grenades and artillery shells to create smoke screens on the battlefield, making it an incendiary substance. It is not used in atomic or nuclear warheads where the main destructive force comes from nuclear fission or fusion reactions.
Soon after World War 2 rockets were used to carry nuclear warheads. In the space program they are used to carry many kinds of objects into space. But, they are still used to carry nuclear warheads too.
as per today's update Russia has more than 3000 nuclear warheads(deactivated),1200 warheads ready for use. US has nearly 2400 nuclear warheads stockpiled and 400 nukes ready for use.
Uranium. Plutonium can also be used in both but less commonly in nuclear reactors (but extensively in weapons).
yes
About 30,000.