Nuclei and energy levelsWatch
I just did a question on a Unit 5A AQA physics mock where it required you to explain that a moderator nucleus that collides with a high energy neutron in a nuclear reactor emits a gamma photon. It says in the mark scheme 'because the nucleus de-excites to it's ground state'. I wasn't aware that nuclei could move between energy levels and was under the impression it was only electrons? Is that what the mark scheme is trying to say or am I mistaken?
Thanks in advance
I have to edit this; electrons don't really queue up, as you may know from chemistry they have some strange rules when populating different shells. A better description is "the electrons will, as a group, arrange themselves into a configuration state with minimum energy".