Sinonimi: At | atomic number 85
A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium; SYN. At, atomic number 85.
Radioactive element of the halogen group.
Nonmetallic, radioactive element, symbol At, atomic number 85, atomic weight 210. It is a member of the halogen group, and is very rare in nature. Astatine is highly unstable, with at least 19 isotopes; the longest lived has a half-life of about eight hours.
Radioaktivni hemijski element, astatin.
Veštački radioaktivni element, astat, napravljen veštački.