Nuclear bomb is a general term encompassing both fission (atomic) and fusion (hydrogen) bombs. Therefore, your question as worded cannot be answered.
A fission bomb has a maximum yield that cannot be exceeded (estimated at about 1MTon).
A fusion bomb has no maximum yield. In principle you can make one as big as you like.
However, that being said there are fusion bombs with much lower yield than many fission bombs have! LLNL is detonating tiny fusion bombs, using a powerful laser to drive implosion and heat the fuel, having a yield of about one stick of dynamite each as part of research into making a controlled fusion power reactor.
the hydrogen bomb, is a nuclear bomb
Nuclear bomb can mean either fission or fusion bomb. Hydrogen bomb means fusion bomb. The fusion bomb can be built with any yield one wants, just by adding more stages with more fuel. The fission bomb has a theoretical maximum yield that cannot be exceeded.
Both bombs use nuclear reaction, the hydrogen bomb is more powerful because it uses the most abundant substance in the universe.
All bombs are dangerous, but the atom bomb is certainly one of the most devastating. The only type of bomb thus far created that is more powerful than an atom bomb is a hydrogen bomb, which is the type of nuclear bomb that uses fusion instead of just fission. The Tsar Bomba, which is the single most powerful deviceever used, let alone bomb, is an example of a hydrogen bomb. Its yield was rated at a staggering 56 megatons of force. I've added a link below if you'd like more information.
The 'uranium bomb' is an A-bomb and is a first generation nuclear weapon. The hydrogen bomb or H-bomb is a 2nd generation nuclear weapon and generally many times more powerful. 'H-bomb' can also refer to 3rd generation nuclear weapons that have an additional mass off uranium to provide further fuel, triggered by the 2nd generation fusion reaction; these are the most powerful. But recent studies show that the H-Bomb has more mass, therefore more energy, and therefore has more energy. So the H-bomb is more powerful.
WW2 ended with the nuclear attack on Japan. The cities of Hiroshima and Nagasaki suffered the consciences of the nuclear bomb. With the United States using these powerful weapons, Russia begun research on the nuclear bomb and in a period of time, they got their nuclear bomb ready. The nations in power were in the "who got the most powerful bomb" race. The nuclear arms race was central to the Cold War. Many feared where the Cold War was going with the belief that the more nuclear weapons you had, the more powerful you were. Both America and Russia massively built up their stockpiles of nuclear weapons. The world greatly changed when USA exploded the H-bomb in 1952. This one bomb was smaller in size than the Hiroshima atomic bomb but 2500 times more powerful. The Russians produced an H-bomb in 1953 and the world became a much more dangerous place.
Global warming is more dangerous since a nuclear bomb or explosion could wipe out a population of one country or more but global warming can wipe out the existence of all Mankind on Earth.
He believed that developing nuclear weapons instead of preparing for conventional war was more cost-efficient.
Yes. Hydrogen bombs are, in fact, a variety of atomic weapon.
No, the bomb dropped on Hiroshima was an atomic bomb using uranium as the fissile material.
No, a nuclear bomb is simply a radioactive core that is detonated via nuclear fission. In simpler terms, the radioactive element's atoms are split, which causes a chain reaction releasing an intense amount of radiation and energy. A hydrogen bomb, on the other hand, uses a nuclear bomb to detonate hydrogen, which, during the "explosion", although that is not exactly what it is, is ignited and ignites releasing more energy than a nuclear bomb. A hydrogen bomb has never been used during warfare because nuclear weapons were outlawed during the Geneva Conventions (Protocol I Articles 51 and 54, which state that indiscriminate attacks, or attacks that target civilians or indirectly kill mass numbers of civilians, are considered a war crime).
both r useless Sometimes "atom" bomb is also used to describe a hydrogen bomb. Strictly, historically speaking, the atom bomb works via the energy released when a heavy atom nucleus such as uranium is split (called nuclear fission). This is also the energy source for nuclear power stations. A hydrogen bomb works via the energy released on fusing (called nuclear fusion) two light atoms (such as hydrogen) together - the huge pressure needed is derived from an atom bomb. This situation arises because the atoms towards in the middle of the periodic table are more stable, than those nearer the ends. A lot of electricity is derived nowadays from nuclear fission (nuclear power stations) but no significant power has yet been derived from nuclear fusion, though a lot of work is being done on it.