astatine
A highly radioactive chemical element, one of the halogens, with atomic number 85A highly radioactive chemical element (symbol At), one of the halogens, with atomic number 85.
» Fluorine, chlorine, bromine, iodine and astatine are halogens.
Фтор, хлор, бром, йод и астат - галогены.
Meaning
2 senses(countable, uncountable)A highly radioactive chemical element (symbol At), one of the halogens, with atomic number 85.
Astat, Astatin
аста́тastát, астати́нastatín
аста́тastát
a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
A highly radioactive chemical element (symbol At), one of the halogens, with atomic number 85.
(countable)An atom of this element.
Examples
2 sentencesFluorine, chlorine, bromine, iodine and astatine are halogens.
ruФтор, хлор, бром, йод и астат - галогены. — Ooneykcall
Astatine was first made at Berkeley by bombarding bismuth with alpha particles, which produced astatine and released two neutrons.
Translations
9 languagesBy meaning 1
By meaning 1
By meaning 1
Origin
From Ancient Greek ἄστατος (ástatos, “unstable”) + -ine.From Ancient Greek ἄστατος (ástatos, “unstable”) + -ine.
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Forms
plural: astatinesSynonyms
4 synonyms- a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium:Atatomic number 85
Word family
5 related wordsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable