astatine
chemical element with symbol At and atomic number 85
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astatine
Summary
astatine is a chemical element[1]. astatine draws 2,465 Wikipedia views per month (chemical_element category, ranking #58 of 144).[2]
Key Facts
- astatine is credited with the discovery of Emilio G. Segrè[3].
- astatine's instance of is recorded as chemical element[4].
- astatine's instance of is recorded as synthetic element[5].
- instability is named after astatine[6].
- astatine's location of discovery is recorded as United States[7].
- astatine's canonical SMILES is recorded as [At][8].
- astatine's element symbol is recorded as At[9].
- astatine's chemical formula is recorded as At[10].
- astatine is a type of metalloid[11].
- astatine is a type of halogens[12].
- astatine is part of period 6[13].
- astatine is part of halogens[14].
- astatine's Commons category is recorded as Astatine[15].
- astatine's Unicode character is recorded as 砈[16].
- astatine's time of discovery or invention is recorded as 1940[17].
- astatine's topic's main category is recorded as Category:Astatine[18].
- astatine's Commons gallery is recorded as Astatine[19].
- astatine's atomic number is recorded as {'amount': '+85'}[20].
- astatine's electronegativity is recorded as {'amount': '+2.2'}[21].
- astatine's described by source is recorded as Armenian Soviet Encyclopedia, vol. 1[22].
- astatine's boiling point is recorded as {'unit': 'Q11579', 'amount': '+503'}[23].
- astatine's on focus list of Wikimedia project is recorded as Wikipedia:Vital articles/Level/4[24].
Body
Definition and Type
Recorded instance of include chemical element[4] and synthetic element[5]. Recorded subclass of include metalloid[11] and halogens[12].
Origins
instability is named after astatine[6].
Use and Application
Part of include period 6[13], a period[25] and halogens[14], a group[26].
Why It Matters
astatine draws 2,465 Wikipedia views per month (chemical_element category, ranking #58 of 144).[2] astatine has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[27] astatine is known by 33 alternative names across languages and contexts.[28]