chemical element

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English

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Noun

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chemical element (plural chemical elements)

  1. (chemistry) Any one of the types of atom distinguished by having a certain number of protons in its nucleus.
    Synonym: element
  2. (chemistry) A chemical substance made entirely of one such type of atom; any one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons.
    Synonyms: elementary substance, element

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