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Preferred Term:

isotopes

Definition:
Different forms of a single element that have the same number of protons but different numbers of neutrons in their nuclei. Some radioactive isotopes are unstable and shed nuclear particles over time until they become stable. For instance, unstable isotopes of uranium break down to become lead.
Concept Schemes:
NALT Core
Broader Concept:
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URI:
https://lod.nal.usda.gov/nalt/267
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RDF/XMLCreated 2006-01-19, last modified 2019-09-03