硫的同位素
在天然硫样品中，34S的丰度变化率很大，会在 3.96％ 和 4.77％ 之间变动。 | |||||||||||||||||||||||||||||||||||||||||||||||
| 标准原子质量 (Ar, 标准) |
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硫（原子质量单位：32.065(5)）共有25个同位素，其中有4个是稳定的。
图表
[编辑]| 符号 | Z | N | 同位素质量（u） [n 1][n 2] |
半衰期 [n 1][n 2] |
衰变 方式[2] |
衰变 产物 [n 3] |
原子核 自旋[n 1] |
相对丰度 （莫耳分率）[n 2] |
相对丰度 的变化量 （莫耳分率） |
|---|---|---|---|---|---|---|---|---|---|
| 激发能量[n 2] | |||||||||
| 26S | 16 | 10 | 26.02788(32)# | 10# ms | 2p | 24Si | 0+ | ||
| 27S[n 4] | 16 | 11 | 27.01883(22)# | 15.5(15) ms | β+ (98.0%) | 27P | (5/2+) | ||
| β+, 2p (2.0%) | 25Al | ||||||||
| β+, p (<.1%) | 26Si | ||||||||
| 28S | 16 | 12 | 28.00437(17) | 125(10) ms | β+ (79.3%) | 28P | 0+ | ||
| β+, p (20.7%) | 27Si | ||||||||
| 29S | 16 | 13 | 28.99661(5) | 187(4) ms | β+ (53.6%) | 29P | 5/2+ | ||
| β+, p (46.4%) | 28Si | ||||||||
| 30S | 16 | 14 | 29.984903(3) | 1.178(5) s | β+ | 30P | 0+ | ||
| 31S | 16 | 15 | 30.9795547(16) | 2.572(13) s | β+ | 31P | 1/2+ | ||
| 32 S [n 5] |
16 | 16 | 31.97207100(15) | 稳定 | 0+ | 0.9493(31) | 0.94454-0.95281 | ||
| 33S | 16 | 17 | 32.97145876(15) | 稳定 | 3/2+ | 0.0076(2) | 0.00730-0.00793 | ||
| 34S | 16 | 18 | 33.96786690(12) | 稳定 | 0+ | 0.0429(28) | 0.03976-0.04734 | ||
| 35S | 16 | 19 | 34.96903216(11) | 87.51(12) d | β− | 35Cl | 3/2+ | 痕量或天然放射性[n 6] | 宇宙成因 |
| 36S | 16 | 20 | 35.96708076(20) | 稳定 | 0+ | 2(1)×10−4 | 1.3×10−4-2.7×10−4 | ||
| 37S | 16 | 21 | 36.97112557(21) | 5.05(2) min | β− | 37Cl | 7/2− | ||
| 38S | 16 | 22 | 37.971163(8) | 170.3(7) min | β− | 38Cl | 0+ | ||
| 39S | 16 | 23 | 38.97513(5) | 11.5(5) s | β− | 39Cl | (3/2,5/2,7/2)− | ||
| 40S | 16 | 24 | 39.97545(15) | 8.8(22) s | β− | 40Cl | 0+ | ||
| 41S | 16 | 25 | 40.97958(13) | 1.99(5) s | β− (>99.9%) | 41Cl | (7/2−)# | ||
| β−, n (<.1%) | 40Cl | ||||||||
| 42S | 16 | 26 | 41.98102(13) | 1.013(15) s | β− (96%) | 42Cl | 0+ | ||
| β−, n (4%) | 41Cl | ||||||||
| 43S | 16 | 27 | 42.98715(22) | 260(15) ms | β− (60%) | 43Cl | 3/2−# | ||
| β−, n (40%) | 42Cl | ||||||||
| 43mS | 319(5) keV | 480(50) ns | (7/2−) | ||||||
| 44S | 16 | 28 | 43.99021(42) | 100(1) ms | β− (82%) | 44Cl | 0+ | ||
| β−, n (18%) | 43Cl | ||||||||
| 45S | 16 | 29 | 44.99651(187) | 68(2) ms | β−, n (54%) | 44Cl | 3/2−# | ||
| β− (46%) | 45Cl | ||||||||
| 46S | 16 | 30 | 46.00075(75)# | 50(8) ms | β− | 46Cl | 0+ | ||
| 47S | 16 | 31 | 47.00859(86)# | 20# ms [>200 ns] |
β− | 47Cl | 3/2−# | ||
| 48S | 16 | 32 | 48.01417(97)# | 10# ms [>200 ns] |
β− | 48Cl | 0+ | ||
| 49S | 16 | 33 | 49.02362(102)# | <200 ns | n | 48S | 3/2−# | ||
- ^ 1.0 1.1 1.2 画上#号的数据代表没有经过实验的证明，仅为理论推测。
- ^ 2.0 2.1 2.2 2.3 用括号括起来的数据代表不确定性。
- ^ 稳定的衰变产物以粗体表示。
- ^ Has 2 halo protons
- ^ Heaviest theoretically stable nuclide with equal numbers of protons and neutrons
- ^ 宇宙成因
| ← | 同位素列表 | → |
| 磷的同位素 | 硫的同位素 | 氯的同位素 |
参考文献
[编辑]- ^ Meija, Juris; et al. Atomic weights of the elements 2013 (IUPAC Technical Report). Pure and Applied Chemistry. 2016, 88 (3): 265–91. doi:10.1515/pac-2015-0305.
- ^ Universal Nuclide Chart
. nucleonica. [2015-09-10]. （原始内容存档于2017-02-19）.
- Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
- Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report) （页面存档备份，存于互联网档案馆）. Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005) （页面存档备份，存于互联网档案馆）.
- Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
- Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties （页面存档备份，存于互联网档案馆）, Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database （页面存档备份，存于互联网档案馆） (retrieved Sept. 2005).
- David R. Lide (ed.), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.