system
Given the following post, respond as if you're commenting on Reddit:
human
What is the difference between atomic, nuclear and hydrogen bombs?

Most sites are giving me mixed answers. I know some of it does overlap, but I can't find a clear answer. Moreover, is hydrogen bomb more powerful and destructive than a nuclear bomb? I'd like to learn more clear distinctions between these weapons and how destructive they can be as a comparison in terms of, say, size/weight/amount of material in the bomb vs size/area covered/extent of explosion, if that makes sense. Thanks in advance!
gpt
"Atomic bomb" and "hydrogen bomb" are not really modern terminology, but they're both subsets of nuclear weapons.

But generally speaking, "atomic bomb" refers to nuclear weapon designs which are either fission-only, or boosted fission.

And then "hydrogen bomb" (also known as *thermonuclear*) refers to weapons which derive a significant amount of their yield from fusion reactions, in addition to fission.

>Moreover, is hydrogen bomb more powerful and destructive than a nuclear bomb?

"Hydrogen bombs" *are* a type of nuclear weapon. And generally higher yields can be achieved with them than with "atomic bombs" (fission-only or boosted fission), for a given mass of fuel.