Melo ninu awon isotopu astatini nje lilo bi olufonsita iwonwo alpha ninu awon imulo sayensi, be sini adanwo awon imulo oniwosan fun astatini 211 ti sele.. 
UNESCO to duro fun United Nations Educational, Scientific and Cultural Organization ní Èdè Gẹ̀ẹ́sì (Àjọ ẹ̀kọ́, sáyẹ́nsi àti Àṣà ti Ìhùkò àwọn orílẹ̀-èdè 