What is another word for nuclear isomerism?
Pronunciation: [njˈuːkli͡əɹ ˈa͡ɪsəməɹˌɪzəm] (IPA) 
Nuclear isomerism refers to the phenomenon of two or more isotopes of a given element having the same number of protons but different numbers of neutrons in their nuclei, resulting in identical atomic numbers but different mass numbers. Synonyms for nuclear isomerism include nuclear isomers, radioactive isomers, nuclear excited states, and metastable nuclear states. These different terms are all used to describe the same underlying concept of isotopes with identical atomic numbers but different nuclear configurations. Nuclear isomerism plays a significant role in nuclear physics and chemistry and is exploited in various fields, such as medical imaging and nuclear energy generation.
