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Thesaurus: atomic number 85
a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
Related headwords
decaydefinitionelementdefinitionhalogendefinitionheaviestdefinitionhighlydefinitionproductdefinitionradioactivedefinitionseriesdefinitionthoriumdefinitionunstabledefinitionuraniumdefinitionatomicfamilyatomic bombfamilyatomic clockfamilyatomic cocktailfamilyatomic energyfamilyAtomic Energy Commissionfamilyatomic explosionfamilyatomic massfamilyatomic mass unitfamilyatomic numberfamilyatomic number 1familyatomic number 10familyatomic number 100familyatomic number 101familyatomic number 102familyatomic number 103familyatomic number 104family