Natural Abundance Definition

Definition: Natural abundance is the measure of the average amount of a given isotope naturally occurring on Earth.

Examples: There are two natural isotopes of boron: 10B and 11B. The natural abundance is 19.9% of 10B and 80.1% of 11B.

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Helmenstine, Anne Marie, Ph.D. "Natural Abundance Definition." ThoughtCo, Jun. 12, 2014, thoughtco.com/definition-of-natural-abundance-605388. Helmenstine, Anne Marie, Ph.D. (2014, June 12). Natural Abundance Definition. Retrieved from https://www.thoughtco.com/definition-of-natural-abundance-605388 Helmenstine, Anne Marie, Ph.D. "Natural Abundance Definition." ThoughtCo. https://www.thoughtco.com/definition-of-natural-abundance-605388 (accessed January 20, 2018).