atomic number 85 meaning

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atomic number 85 (noun): a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium.

Definition of atomic number 85

  1. a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

    Synonyms: astatine, At

    Type of: chemical element, halogen

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