astatine
/'æstәti:n/
中文翻译
n. 砹
[化] 砹At
英文解释
n. a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
常见例句
1
any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions