Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
astatine | Yes | No | No | No |
halogen | Yes | No | No | No |
astatine (noun) | halogen (noun) |
---|---|
a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium | any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions |