Astatin

Astatin panèka unsur kimia kalabân simbol At bân nomer atom 85. Unsur panèka unsur alami sè palèng langka è kerak bhumi, namong bâdâ mènangka hasèl pelorowân ḍâri bânnya' unsur sè lebbi berrâ'. Kabbhi isotop astatin panèka omorra pènḍâ'; sè palèng stabil panèka astatin-210, kalabân omor satengnga 8,1 jhâm. Sampel murni astatin ghi' ta' perna èghâbay, polana spesimen makroskopis bhâkal ceppet è'uapaghi polana panas radioaktivitasna ḍhibi'.

Sèfat Astatin

Astatin panèka unsur sè cè' radioaktifna; kabbhi isotopna anḍi' omor satengnga 8,1 jhâm otabâ korang, loro dâ' isotop astatin laènna, bismut, polonium, otabâ radon. Kabânnya'an isotopna cè' ta' stabilna, kalabân omor satengnga sèttong detik otabâ korang. ḍâri 101 unsur pertama è tabel perioḍik, namong francium sè korang stabil, bân kabbhi isotop astatin lebbi stabil dâri francium, namong, sintetis bân ta' ètemmoè è alam.^[1]

Sifat sabâgiyân bânnya' astatine ghi' ta' èkennal kalabân teppa'.^[2] Pânelitian èbâtessi sareng omor satengnga sè panḍâ', sè nyegghâ bâḍâna oso' sè bisa ètèmbhâng. ^[2] Sakerra' astatin sè èkaton bhâkal ghâmpang è'uapaghi ḍhibi' polana panas sè èhasilaghi sareng radioaktivitas sè terros bâḍâ. ghi' koḍhu èkaton manabi kalabân cèllep sè cokop, oso' astatin makroskopis bisa èsèmpen mènangka film tipis. ^[3] Astatin biasana èklasifikasiaghi mènangka nonlogam otabâ metaloid; ^[4] ^[5] bentu'na logam jhughân ampon èkèra'aghi. ^[3] ^[6]

Sombher

↑ Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties"Nuclear Physics A, 729: 3–128, Bibcode" 2003NuPhA.729....3A. doi: 10.1016/j.nuclphysa.2003.11.001
↑ ^2,0 ^2,1 Wiberg, N., ed. (2001). Holleman-Wiberg: Inorganic Chemistry. Terjemahan edisi Jerman ke-101 oleh M. Eagleson dan W. D. Brewer, editor bahasa Inggris B. J. Aylett. Academic Press. p. 423. ISBN 978-0-12-352651-9.
↑ ^3,0 ^3,1 Hermann, A.; Hoffmann, R.; Ashcroft, N. W. (2013). "Condensed Astatine: Monatomic and Metallic". Physical Review Letters. 111 (11): 116404-1 – 116404-5. Bibcode:2013PhRvL.111k6404H. doi:10.1103/PhysRevLett.111.116404. PMID 24074111.
↑ Kotz, J. C.; Treichel, P. M.; Townsend, J. (2011). Chemistry & Chemical Reactivity (8 ed.). Cengage Learning. p. 65. ISBN 978-0-8400-4828-8.
↑ Jahn, T. P. (2010). MIPS and Their Role in the Exchange of Metalloids. Vol. 679. Springer. p. 41. ISBN 978-1-4419-6314-7.
↑ Siekierski, S.; Burgess, J. (2002). Concise Chemistry of the Elements. Horwood. pp. 65, 122. ISBN 978-1-898563-71-6.

[1] Audi, Georges; Bersillon, Olivier; Blachot, Jean; Wapstra, Aaldert Hendrik (2003), "The NUBASE evaluation of nuclear and decay properties"Nuclear Physics A, 729: 3–128, Bibcode" 2003NuPhA.729....3A. doi: 10.1016/j.nuclphysa.2003.11.001

[MoreAtIC-2] 2,0 ^2,1 Wiberg, N., ed. (2001). Holleman-Wiberg: Inorganic Chemistry. Terjemahan edisi Jerman ke-101 oleh M. Eagleson dan W. D. Brewer, editor bahasa Inggris B. J. Aylett. Academic Press. p. 423. ISBN 978-0-12-352651-9.

[Hermann-3] 3,0 ^3,1 Hermann, A.; Hoffmann, R.; Ashcroft, N. W. (2013). "Condensed Astatine: Monatomic and Metallic". Physical Review Letters. 111 (11): 116404-1 – 116404-5. Bibcode:2013PhRvL.111k6404H. doi:10.1103/PhysRevLett.111.116404. PMID 24074111.

[4] Kotz, J. C.; Treichel, P. M.; Townsend, J. (2011). Chemistry & Chemical Reactivity (8 ed.). Cengage Learning. p. 65. ISBN 978-0-8400-4828-8.

[Jahn2010-5] Jahn, T. P. (2010). MIPS and Their Role in the Exchange of Metalloids. Vol. 679. Springer. p. 41. ISBN 978-1-4419-6314-7.

[6] Siekierski, S.; Burgess, J. (2002). Concise Chemistry of the Elements. Horwood. pp. 65, 122. ISBN 978-1-898563-71-6.

[1]

[2]

[3]

[4]

[5]

[6]