ایزوتوپهای آرسنیک
عنصر آرسنیک به طور طبیعی دارای تنها یک ایزوتوپ پایدار As است. همچنین تاکنون ۳۳ ایزوتوپ و ۱۰ ایزومر هستهای از این عنصر شناسایی شده است.
جدول ایزوتوپها
نماد | Z(p) | N(n) | جرم ایزوتوپ (u) | نیمه عمر | حالت واپاشی | ایزوتوپ دختر | اسپین | representative isotopic composition (کسر مولی) | range of natural variation (mکسر مولی) |
---|---|---|---|---|---|---|---|---|---|
excitation energy | |||||||||
As | 33 | 27 | ۵۹٫۹۹۳۱3(64)# | p | Ge | ۵+# | |||
As | 33 | 28 | ۶۰٫۹۸۰۶2(64)# | p | Ge | ۳/۲-# | |||
As | 33 | 29 | ۶۱٫۹۷۳۲0(32)# | p | Ge | ۱+# | |||
As | 33 | 30 | ۶۲٫۹۶۳۶9(54)# | p | Ge | (۳/۲-)# | |||
As | 33 | 31 | ۶۳٫۹۵۷۵7(38)# | 40(30) ms [18(+43-7) ms] | β | Ge | ۰+# | ||
As | 33 | 32 | ۶۴٫۹۴۹۵6(32)# | 170(30) ms | β | Ge | ۳/۲-# | ||
As | 33 | 33 | ۶۵٫۹۴۴۷1(73) | 95.77(23) ms | β | Ge | (۰+) | ||
As | 1356.70(17) keV | ۱.1(1) µs | (۵+) | ||||||
As | 3023.9(3) keV | ۸.2(5) µs | (۹+) | ||||||
As | 33 | 34 | ۶۶٫۹۳۹۱9(11) | 42.5(12) s | β | Ge | (۵/۲-) | ||
As | 33 | 35 | ۶۷٫۹۳۶۷7(5) | 151.6(8) s | β | Ge | ۳+ | ||
As | 425.21(16) keV | 111(20) ns [?107(+23-16) ns] | ۱+ | ||||||
As | 33 | 36 | ۶۸٫۹۳۲۲7(3) | 15.2(2) min | β | Ge | ۵/۲- | ||
As | 33 | 37 | ۶۹٫۹۳۰۹2(5) | 52.6(3) min | β | Ge | ۴(+#) | ||
As | 32.008(23) keV | ۹6(3) µs | ۲(+) | ||||||
As | 33 | 38 | ۷۰٫۹۲۷۱۱2(5) | 65.28(15) h | β | Ge | ۵/۲- | ||
As | 33 | 39 | ۷۱٫۹۲۶۷۵2(5) | 26.0(1) h | β | Ge | ۲- | ||
As | 33 | 40 | ۷۲٫۹۲۳۸۲5(4) | 80.30(6) d | EC | Ge | ۳/۲- | ||
As | 33 | 41 | ۷۳٫۹۲۳۹۲۸7(25) | 17.77(2) d | β (66%) | Ge | ۲- | ||
β (34%) | Se | ||||||||
As | 33 | 42 | ۷۴٫۹۲۱۵۹۶5(20) | پایدار | ۳/۲- | ۱٫۰۰۰۰ | |||
As | 303.9241(7) keV | 17.62(23) ms | ۹/۲+ | ||||||
As | 33 | 43 | ۷۵٫۹۲۲۳۹4(2) | 1.0942(7) d | β (99.98%) | Se | ۲- | ||
EC (.02%) | Ge | ||||||||
As | 44.425(1) keV | ۱٫۸4(6) µs | (۱)+ | ||||||
As | 33 | 44 | ۷۶٫۹۲۰۶۴۷3(25) | 38.83(5) h | β | Se | ۳/۲- | ||
As | 475.443(16) keV | ۱۱۴.0(25) µs | ۹/۲+ | ||||||
As | 33 | 45 | ۷۷٫۹۲۱۸۲7(11) | 90.7(2) min | β | Se | ۲- | ||
As | 33 | 46 | ۷۸٫۹۲۰۹۴8(6) | 9.01(15) min | β | Se | ۳/۲- | ||
As | 772.81(6) keV | ۱٫۲1(1) µs | (۹/۲)+ | ||||||
As | 33 | 47 | ۷۹٫۹۲۲۵۳4(25) | 15.2(2) s | β | Se | ۱+ | ||
As | 33 | 48 | ۸۰٫۹۲۲۱۳2(6) | 33.3(8) s | β | Se | ۳/۲- | ||
As | 33 | 49 | ۸۱٫۹۲۴۵0(21) | 19.1(5) s | β | Se | (۱+) | ||
As | 250(200) keV | 13.6(4) s | β | Se | (۵-) | ||||
As | 33 | 50 | ۸۲٫۹۲۴۹8(24) | 13.4(3) s | β | Se | ۳/۲-# | ||
As | 33 | 51 | ۸۳٫۹۲۹۰6(32)# | 4.02(3) s | β (99.721%) | Se | (۳)(+#) | ||
β, n (.029%) | Se | ||||||||
As | 0(100)# keV | 650(150) ms | |||||||
As | 33 | 52 | ۸۴٫۹۳۲۰2(21)# | 2.021(10) s | β, n (59.4%) | Se | (۳/۲-)# | ||
β (40.6%) | Se | ||||||||
As | 33 | 53 | ۸۵٫۹۳۶۵0(32)# | 0.945(8) s | β (67%) | Se | |||
β, n (33%) | Se | ||||||||
As | 33 | 54 | ۸۶٫۹۳۹۹0(32)# | 0.56(8) s | β (84.6%) | Se | ۳/۲-# | ||
β, n (15.4%) | Se | ||||||||
As | 33 | 55 | ۸۷٫۹۴۴۹4(54)# | 300# ms [>300 ns] | β | Se | |||
β, n | Se | ||||||||
As | 33 | 56 | ۸۸٫۹۴۹۳9(54)# | 200# ms [>300 ns] | β | Se | ۳/۲-# | ||
As | 33 | 57 | ۸۹٫۹۵۵۵0(86)# | 80# ms [>300 ns] | |||||
As | 33 | 58 | ۹۰٫۹۶۰۴3(97)# | 50# ms [>300 ns] | ۳/۲-# | ||||
As | 33 | 59 | ۹۱٫۹۶۶۸0(97)# | 30# ms [>300 ns] |
منابع
- Isotope masses from:
- G. Audi, A. H. Wapstra, C. Thibault, J. Blachot and O. Bersillon (2003). "The NUBASE evaluation of nuclear and decay properties" (PDF). Nuclear Physics A. 729: 3–128. Bibcode:2003NuPhA.729....3A. doi:10.1016/j.nuclphysa.2003.11.001.
- Isotopic compositions and standard atomic masses from:
- J. R. de Laeter, J. K. Böhlke, P. De Bièvre, H. Hidaka, H. S. Peiser, K. J. R. Rosman and P. D. P. Taylor (2003). "Atomic weights of the elements. Review 2000 (IUPAC Technical Report)". Pure and Applied Chemistry. 75 (6): 683–800. doi:10.1351/pac200375060683.
- M. E. Wieser (2006). "Atomic weights of the elements 2005 (IUPAC Technical Report)". Pure and Applied Chemistry. 78 (11): 2051–2066. doi:10.1351/pac200678112051.
- Half-life, spin, and isomer data selected from the following sources. See editing notes on this article's talk page.
- G. Audi, A. H. Wapstra, C. Thibault, J. Blachot and O. Bersillon (2003). "The NUBASE evaluation of nuclear and decay properties" (PDF). Nuclear Physics A. 729: 3–128. Bibcode:2003NuPhA.729....3A. doi:10.1016/j.nuclphysa.2003.11.001.
- National Nuclear Data Center. "NuDat 2.1 database". Brookhaven National Laboratory. Retrieved September 2005.
- N. E. Holden (2004). "Table of the Isotopes". In D. R. Lide (ed.). CRC Handbook of Chemistry and Physics (85th ed.). CRC Press. Section 11. ISBN 978-0-8493-0485-9.