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Mononuclidic element facts for kids

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A mononuclidic element or monotopic element is a chemical elements that is found naturally on Earth as only one nuclide. Most elements have many nuclides, that is their nuclei may have various numbers of neutrons. The single nuclide of a mononuclidic element may, or may not, be a stable one. There are 21 mononuclidic elements.

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Mononuclidic element Facts for Kids. Kiddle Encyclopedia.