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astatine

/'æstə,tin__tɪn/

Synonyms of astatine Antonyms of astatine Examples of astatine Usage of astatine Parts of astatine Definition that contains astatine Words sounding like astatine Explanation of astatine

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

type of:
chemical element element halogen

Definition that contains astatine

halogen any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions