. "At₂" . . . . . . "Astatine#History" . . . . . "element 85" . . . . . . . "Astatine" . . . . "85" . "Astatine#Compounds" . . . . "Astatine" . . . "₈₅At" . . . . . . . . . . . . . . . "At" . "astatine" . .