Wordnet angielsko-polski
(a highly unstable radioactive element (the heaviest of the halogen series)
a decay product of uranium and thorium)
astat, At
synonim: astatine
synonim: atomic number 85
(a highly unstable radioactive element (the heaviest of the halogen series)
a decay product of uranium and thorium)
astat, At
synonim: astatine
synonim: atomic number 85