In the early "Atomic Age", nuclear technology was generally termed "atomic" in English. There was "A-bomb", "atomic reactor" and "Atomic Energy Commission".
But over time the word "nuclear" gained ascendance. Nowadays it is used almost exclusively, even the nickname for nuclear weapons is "nuke".
Obviously, nuclear is technically more correct, since this technology manipulates the nucleus, and uses its binding energy, but how did the more correct usage catch on? Who were the first to consistently say "nuclear"? When and how did the government begin to use it to name things? Did it go differently in the US and in the UK?