atomic bomb or also nuclear weapon nuclear weapon or atomic bomb inuclear weapon inoshandisa nuclear reaction yacho sedestructive explosion.nuclear explosion inoshandisa all its energitic force padestruction.Manuclear weapons akashandiswa neUSA pavaiita hondo nejapan. pane two types dzemanuclear weapons uye anoti fission weapons maweapons aya anenge achishandisa nuclear fission reaction kuti iproduce maexplosives. mumaweapons aya anoshandisa supermassive radio active plutonium.macommon nuclear reacters anoshandiswa anoti uranium 235 nePlutonium 239. fusion weapons The other basic type of nuclear weapon produces a large proportion of its energy in nuclear fusion reactions. Such fusion weapons are generally referred to as thermonuclear weapons or more colloquially as hydrogen bombs (abbreviated as H-bombs), as they rely on fusion reactions between isotopes of hydrogen (deuterium and tritium). All such weapons derive a significant portion, and sometimes a majority, of their energy from fission. This is because a fission reaction is required as a "trigger" for the fusion reactions, and the fusion reactions can themselves trigger additional fission reactions.[12] Only six countries—United States, Russia, United Kingdom, People's Republic of China, France and India—have conducted thermonuclear weapon tests.