锡-121m
錫-121m是指錫-121的核同質異能素,可能的核素有:
符號 | 質量欠缺 | 激發能量 | 半衰期 | 衰變 方式[3][n 1] |
衰變 產物[n 2] |
原子核 自旋 |
---|---|---|---|---|---|---|
121 Sn [n 3] |
-89.1971 MeV | 0.00 keV (基態) | 27.03(4) h | β− | 121Sb | 3/2+ |
121m1 Sn |
-89.1908 MeV | 6.30(6) keV | 43.9(5) y | IT (77.6%) | 121Sn | 11/2- |
β− (22.4%) | 121Sb | |||||
121m2 Sn |
1998.8(9) keV | 5.3(5) µs | (19/2+)# | |||
121m3 Sn |
2834.6(18) keV | 0.167(25) µs | (27/2-) |
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参考文獻
- Isotope masses from Ame2003 Atomic Mass Evaluation 的存檔,存档日期2008-09-23. 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). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005).
- . nucleonica. [2015-09-18]. (原始内容存档于2017-02-19).
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