钔的同位素
| |||||||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||||||
图表[编辑]
符号 | Z( p ) |
N( n ) |
同位素质量(u) | 半衰期 | 衰变 方式[4][n 1] |
衰变 产物 |
原子核 自旋 |
---|---|---|---|---|---|---|---|
激发能量 | |||||||
245Md | 101 | 144 | 245.08081(33)# | 0.90(25) ms | SF | (various) | (1/2−)# |
α (不常见) | 241Es | ||||||
245mMd | 200(100)# keV | 400(200) ms [0.35(+23−16) s] |
α | 241Es | (7/2+) | ||
β+ (不常见) | 245Fm | ||||||
246Md | 101 | 145 | 246.08171(28)# | 1.0(4) s | α | 242Es | |
β+ (不常见) | 246Fm | ||||||
247Md | 101 | 146 | 247.08152(22)# | 1.12(22) s | SF | (various) | 1/2−# |
α (不常见) | 243Es | ||||||
247mMd | ~0.2 s | α (99.99%) | 243Es | ||||
SF (10−4%) | (various) | ||||||
248Md | 101 | 147 | 248.08282(26)# | 7(3) s | β+ (80%) | 248Fm | |
α (20%) | 244Es | ||||||
β+, SF (.05%) | (various) | ||||||
249Md | 101 | 148 | 249.08291(22)# | 24(4) s | α (60%) | 245Es | (7/2−) |
β+ (40%) | 249Fm | ||||||
249mMd | 100(100)# keV | 1.9(9) s | (1/2−) | ||||
250Md | 101 | 149 | 250.08442(32)# | 52(6) s | β+ (93%) | 250Fm | |
α (7%) | 246Es | ||||||
β+, SF (.02%) | (various) | ||||||
251Md | 101 | 150 | 251.084774(20) | 4.0(5) min | β+ (90%) | 251Fm | 7/2−# |
α (10%) | 247Es | ||||||
252Md | 101 | 151 | 252.08643(14)# | 2.3(8) min | β+ (50%) | 252Fm | |
α (50%) | 248Es | ||||||
253Md | 101 | 152 | 253.08714(3)# | 12(8) min [6(+12−3) min] |
β+ | 253Fm | 7/2−# |
α | 249Es | ||||||
254Md | 101 | 153 | 254.08959(11)# | 10(3) min | β+ | 254Fm | (0−) |
α (不常见) | 250Es | ||||||
254mMd | 50(100)# keV | 28(8) min | β+ | 254Fm | (3−) | ||
α (不常见) | 250Es | ||||||
255Md | 101 | 154 | 255.091084(7) | 27(2) min | β+ (92%) | 255Fm | (7/2−) |
α (8%) | 251Es | ||||||
SF (.15%) | (various) | ||||||
256Md | 101 | 155 | 256.09389(13)# | 77(2) min | β+ (89%) | 256Fm | (1−) |
α (11%) | 252Es | ||||||
257Md | 101 | 156 | 257.0955424(29) | 5.52(5) h | ε (84.8%) | 257Fm | (7/2−) |
α (15.2%) | 253Es | ||||||
SF (1%) | (various) | ||||||
258Md | 101 | 157 | 258.098431(5) | 51.5(3) d | α (99.99%) | 254Es | (8−)# |
β− (.0015%) | 258No | ||||||
β+ (.0015%) | 258Fm | ||||||
258mMd | 0(200)# keV | 57.0(9) min | ε (70%) | 258Fm | 1−# | ||
SF (20%) | (various) | ||||||
β− (10%) | 258No | ||||||
α (1.2%) | 254Es | ||||||
259Md[n 2] | 101 | 158 | 259.10051(22)# | 1.60(6) h | SF (98.7%) | (various) | 7/2−# |
α (1.3%) | 255Es | ||||||
260Md | 101 | 159 | 260.10365(34)# | 27.8(8) d | SF (85%) | (various) | |
α (5%) | 256Es | ||||||
ε (5%) | 260Fm | ||||||
β− (3.5%) | 260No |
备注:画上#号的数据代表没有经过实验的证明,只是理论推测而已,而用括号括起来的代表数据不确定性。
← | 同位素列表 | → |
镄的同位素 | 钔的同位素 | 锘的同位素 |
注释[编辑]
- ^ Abbreviations:
EC: Electron capture
IT: Isomeric transition
SF: Spontaneous fission - ^ Not directly synthesized, occurs as decay product of 259No
参考文献[编辑]
- ^ Singh, Balraj. Nuclear Data Sheets for A=256. Nuclear Data Sheets (Elsevier BV). 2017, 141: 327–364. ISSN 0090-3752. doi:10.1016/j.nds.2017.03.002.
- ^ Singh, Balraj. Nuclear Data Sheets for A=258. Nuclear Data Sheets (Elsevier BV). 2017, 144: 297–322. ISSN 0090-3752. doi:10.1016/j.nds.2017.08.003.
- ^ Schmorak, M.R. Nuclear Data Sheets for A = 246–266(even). Nuclear Data Sheets (Elsevier BV). 1989, 57 (4): 515–629. ISSN 0090-3752. doi:10.1016/s0090-3752(89)80092-4.
- ^ Universal Nuclide Chart. nucleonica. [2015-11-03]. (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).
- 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.
元素与同位素的稳定度 | |||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|