Where Does Isotopic Abundance Come from?

Isotopes have different atomic masses. The relative abundance of an isotope is the percentage of atoms with a specific atomic mass found in a naturally occurring sample of an element.

Where does isotope come from?

Where do isotopes come from? Long story short, isotopes are simply atoms with more neutrons — they were either formed that way, enriched with neutrons sometime during their life, or are originated from nuclear processes that alter atomic nuclei. So, they form like all other atoms.

What is isotopic abundance of an element?

One may speak, for example, of the composition of the ocean, the solar system, or indeed the Galaxy in terms of its respective elemental and isotopic abundances. ... Isotopic abundances refer to the relative proportions of the stable isotopes of each element.