अर्थ : ଏକ ରାସାୟନିକ ତତ୍ତ୍ୱ
उदाहरण :
ଏଷ୍ଟାଟିନର ପରମାଣୁ ସଂଖ୍ୟା ପଞ୍ଚାଅଶୀ
अन्य भाषाओं में अनुवाद :
A highly unstable radioactive element (the heaviest of the halogen series). A decay product of uranium and thorium.
astatine, at, atomic number 85