astatine
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English
| Chemical element | |
|---|---|
| At | |
| Previous: polonium (Po) | |
| Next: radon (Rn) | |
Etymology
From Ancient Greek ἄστατος (ástatos, “unstable”) + -ine.
Pronunciation
- (UK) enPR: asʹtətēn, IPA(key): /ˈastətiːn/
- (US) enPR: ăs'tətēn, IPA(key): /ˈæstəˌtin/
Audio (US) (file)
Noun
astatine (countable and uncountable, plural astatines)
- A highly radioactive chemical element (symbol At), one of the halogens, with atomic number 85.
- Synonyms: (proposed name) alabamine, (formerly) anglohelvetium
- 2003, Bill Bryson, A Short History of Nearly Everything, BCA, page 221:
- Astatine, for instance, is practically unstudied. It has a name and a place on the periodic table (next to Marie Curie's polonium), but almost nothing else.
Hypernyms
Derived terms
Translations
the chemical element
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