less than 4000, more than 400, exact number classified.
It is estimated that there are currently around 13,400 nuclear warheads in the world, with a total explosive yield of approximately 4,000 megatons. These warheads are owned by various countries such as the United States, Russia, China, and others.
B53 nuclear bomb is nine megatons No public data is out on how large the largest megaton nuke really is but there are claims and reports that it is over 100 megatons.
Currently 9 countries possess nuclear weapons; The United States, United Kingdom, France, Russia, China, Israel, India, Pakistan and North Korea.
It is estimated that Russia has enough nuclear weapons to destroy the Earth multiple times over. A nuclear war involving Russia's full arsenal could lead to catastrophic global consequences, including nuclear winter and widespread destruction.
Actually Russia now has 500 to 1000 more nuclear weapons than the USA due to limits set in the START treaty and they are higher yield, based on the fact that their ICBMs are less accurate than US ICBMs.
The countries known to have nuclear weapons are: United States Russia United Kingdom France China India Pakistan North Korea Israel Germany, Italy, Japan and South Africa have the capability of building nuclear weapons but have not done so. Canada once had nuclear weapons, but has dismantled its weapons and permanetly deacitvated its nuclear weapons program. So far it is the only country to do so.
'Arms race' was the 'race' between America and Soviet Russia to develop as many nuclear weapons as possible.
there are many harmful causes of nuclear weapons because whole hiroshima was destroyed of it
Only nine countries have confirmed nuclear weapons: United States, Russia (and several former USSR countries), United Kingdom, France, China, India, Pakistan, North Korea, and Israel. All of these have conducted known nuclear tests except for Israel. All other countries of the world do not have known nuclear weapons. To see a breakdown of how many weapons each of these countries is believed to have, see the "related links" below.
Let's hope we never find out. The Soviet Union was shown not to have as many weapons as they boasted after the fall of communism. It is reasonable to assume the current weapons stocks of Russia are not as deep as those of the United States, who pours money into such things.Tests on nuclear weapons have been banned for some time now both below, and above ground. So there's not much room for improvement in terms of making a more potent bomb or warhead.
Many countries have nuclear weapons today including the United States. China, North Korea, South Korea, and Japan also have nuclear weapons.
Answer 1If you are asking for nuclear weapons Pakistan is the only Islamic country who have nuclear weapons. However, Iran's nuclear program is rumored to be intending to create a nuclear weapon in the near future. Answer 2Pakistanis the only Muslim country having a nuclear weapon.Iran is never trying to have a nuclear weapon as the nuclear weapon is a kind of mass destruction weapons that are forbidden to use per Islam teachings (and other God religions) because this nuclear weapon kills the child, the woman, the old, and the plants and pollutes the universe.However, it is to be known also that also India, Israel, and North Korea have nuclear weapons in addition to USA, Russia, China, France, and UK.