Astatine

Pronunciation

• UK enPR: asʹtÉ™tÄ“n, IPA: /ˈastÉ™tiːn/

Origin

From Ancient Greek ἄστατος ("unstable") + -ine.

Full definition of astatine

Noun

1. A highly radioactive chemical element (symbol At), one of the halogens, with atomic number 85.
• 2003, Bill Bryson, A Short History of Nearly Everything, BCA, p. 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.

Synonyms

• alabamine proposed name
• anglo-helvetium formerly

Derived terms

• astatane
• eka-astatine

Anagrams

• in a state
• Tánaiste