| NOMBRE | substance | ástato, astato, número atómico 85 | a highly unstable radioactive element (the heaviest of the halogen series) |
|---|
| Sentido | A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium. | |
|---|---|---|
| Sinónimos | astato, número atómico 85 | |
| General | elemento, elemento químico | Any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter |
| halógeno | Any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions | |
| Inglés | astatine, At, atomic number 85 | |
| Catalán | àstat | |
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