What is another word for monoisotopic element?
Pronunciation: [mˌɒnə͡ʊˌɪsətˈɒpɪk ˈɛlɪmənt] (IPA) 
A monoisotopic element is an element that only has one stable isotope, meaning that it doesn't naturally occur in any other form. Some synonyms for this term might include mononuclidic element or single-isotope element. Another way to describe such an element might be to use the phrase "unique isotope element" or "sole isotope element." These terms emphasize the one-of-a-kind nature of such elements, highlighting the fact that their atomic makeup is distinct and not found elsewhere in nature. In contrast, a polyisotopic element is one that has multiple stable isotopes, and is more common than a monoisotopic one.
