釹的同位素
(重定向自钕的同位素)
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標準原子質量 (Ar, 標準) |
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釹(原子質量單位: 144.242(3))的同位素,其中有1個穩定同位素和4個觀測上穩定同位素。
圖表[编辑]
符號 | Z( p ) |
N( n ) |
同位素質量(u) | 半衰期 | 衰變 方式[2][n 1] |
衰變 產物[n 2] |
原子核 自旋 |
相對豐度 (莫耳分率) |
相對豐度 的變化量 (莫耳分率) |
---|---|---|---|---|---|---|---|---|---|
激發能量 | |||||||||
124Nd | 60 | 64 | 123.95223(64)# | 500# ms | 0+ | ||||
125Nd | 60 | 65 | 124.94888(43)# | 600(150) ms | 5/2(+#) | ||||
126Nd | 60 | 66 | 125.94322(43)# | 1# s [>200 ns] | β+ | 126Pr | 0+ | ||
127Nd | 60 | 67 | 126.94050(43)# | 1.8(4) s | β+ | 127Pr | 5/2+# | ||
β+, p (不常見) | 126Ce | ||||||||
128Nd | 60 | 68 | 127.93539(21)# | 5# s | β+ | 128Pr | 0+ | ||
β+, p (不常見) | 127Ce | ||||||||
129Nd | 60 | 69 | 128.93319(22)# | 4.9(2) s | β+ | 129Pr | 5/2+# | ||
β+, p (不常見) | 128Ce | ||||||||
130Nd | 60 | 70 | 129.92851(3) | 21(3) s | β+ | 130Pr | 0+ | ||
131Nd | 60 | 71 | 130.92725(3) | 33(3) s | β+ | 131Pr | (5/2)(+#) | ||
β+, p (不常見) | 130Ce | ||||||||
132Nd | 60 | 72 | 131.923321(26) | 1.56(10) min | β+ | 132Pr | 0+ | ||
133Nd | 60 | 73 | 132.92235(5) | 70(10) s | β+ | 133Pr | (7/2+) | ||
133m1Nd | 127.97(11) keV | ~70 s | β+ | 133Pr | (1/2)+ | ||||
133m2Nd | 176.10(10) keV | ~300 ns | (9/2-) | ||||||
134Nd | 60 | 74 | 133.918790(13) | 8.5(15) min | β+ | 134Pr | 0+ | ||
134mNd | 2293.1(4) keV | 410(30) µs | (8)- | ||||||
135Nd | 60 | 75 | 134.918181(21) | 12.4(6) min | β+ | 135Pr | 9/2(-) | ||
135mNd | 65.0(2) keV | 5.5(5) min | β+ | 135Pr | (1/2+) | ||||
136Nd | 60 | 76 | 135.914976(13) | 50.65(33) min | β+ | 136Pr | 0+ | ||
137Nd | 60 | 77 | 136.914567(12) | 38.5(15) min | β+ | 137Pr | 1/2+ | ||
137mNd | 519.43(17) keV | 1.60(15) s | IT | 137Nd | (11/2-) | ||||
138Nd | 60 | 78 | 137.911950(13) | 5.04(9) h | β+ | 138Pr | 0+ | ||
138mNd | 3174.9(4) keV | 410(50) ns | (10+) | ||||||
139Nd | 60 | 79 | 138.911978(28) | 29.7(5) min | β+ | 139Pr | 3/2+ | ||
139m1Nd | 231.15(5) keV | 5.50(20) h | β+ (88.2%) | 139Pr | 11/2- | ||||
IT (11.8%) | 139Nd | ||||||||
139m2Nd | 2570.9+X keV | ≥141 ns | |||||||
140Nd | 60 | 80 | 139.90955(3) | 3.37(2) d | ε | 140Pr | 0+ | ||
140mNd | 2221.4(1) keV | 600(50) µs | 7- | ||||||
141Nd | 60 | 81 | 140.909610(4) | 2.49(3) h | β+ | 141Pr | 3/2+ | ||
141mNd | 756.51(5) keV | 62.0(8) s | IT (99.95%) | 141Nd | 11/2- | ||||
β+ (.05%) | 141Pr | ||||||||
142Nd | 60 | 82 | 141.9077233(25) | 稳定 | 0+ | 0.272(5) | 0.2680-0.2730 | ||
143Nd[n 3][n 4] | 60 | 83 | 142.9098143(25) | 觀測上穩定[n 5] | 7/2- | 0.122(2) | 0.1212-0.1232 | ||
144Nd[n 3][n 6] | 60 | 84 | 143.9100873(25) | 2.29(16)×1015 a | α | 140Ce | 0+ | 0.238(3) | 0.2379-0.2397 |
145Nd[n 3] | 60 | 85 | 144.9125736(25) | 觀測上穩定[n 7] | 7/2- | 0.083(1) | 0.0823-0.0835 | ||
146Nd[n 3] | 60 | 86 | 145.9131169(25) | 觀測上穩定[n 8] | 0+ | 0.172(3) | 0.1706-0.1735 | ||
147Nd[n 3] | 60 | 87 | 146.9161004(25) | 10.98(1) d | β− | 147Pm | 5/2- | ||
148Nd[n 3] | 60 | 88 | 147.916893(3) | 觀測上穩定[n 9] | 0+ | 0.057(1) | 0.0566-0.0578 | ||
149Nd[n 3] | 60 | 89 | 148.920149(3) | 1.728(1) h | β− | 149Pm | 5/2- | ||
150Nd[n 3][n 6] | 60 | 90 | 149.920891(3) | 6.7(7)×1018 a | β−β− | 150Sm | 0+ | 0.056(2) | 0.0553-0.0569 |
151Nd | 60 | 91 | 150.923829(3) | 12.44(7) min | β− | 151Pm | 3/2+ | ||
152Nd | 60 | 92 | 151.924682(26) | 11.4(2) min | β− | 152Pm | 0+ | ||
153Nd | 60 | 93 | 152.927698(29) | 31.6(10) s | β− | 153Pm | (3/2)- | ||
154Nd | 60 | 94 | 153.92948(12) | 25.9(2) s | β− | 154Pm | 0+ | ||
154m1Nd | 480(150)# keV | 1.3(5) µs | |||||||
154m2Nd | 1349(10) keV | >1 µs | (5-) | ||||||
155Nd | 60 | 95 | 154.93293(16)# | 8.9(2) s | β− | 155Pm | 3/2-# | ||
156Nd | 60 | 96 | 155.93502(22) | 5.49(7) s | β− | 156Pm | 0+ | ||
156mNd | 1432(5) keV | 135 ns | 5- | ||||||
157Nd | 60 | 97 | 156.93903(21)# | 2# s [>300 ns] | β− | 157Pm | 5/2-# | ||
158Nd | 60 | 98 | 157.94160(43)# | 700# ms [>300 ns] | β− | 158Pm | 0+ | ||
159Nd | 60 | 99 | 158.94609(54)# | 500# ms | β− | 159Pm | 7/2+# | ||
160Nd | 60 | 100 | 159.94909(64)# | 300# ms | β− | 160Pm | 0+ | ||
161Nd | 60 | 101 | 160.95388(75)# | 200# ms | β− | 161Pm | 1/2-# |
備註:畫上#號的數據代表沒有經過實驗的証明,只是理論推測而已,而用括號括起來的代表數據不確定性。
← | 同位素列表 | → |
鐠的同位素 | 釹的同位素 | 鉕的同位素 |
註釋[编辑]
- ^ 縮寫的涵義:
ε: 电子俘获
IT: 核異構轉變
β+:正电子发射
β−:貝他衰變 - ^ 穩定的衰變產物以粗體表示。
- ^ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 裂变产物
- ^ 用于钐钕测年法
- ^ 被认为会α衰变成139Ce
- ^ 6.0 6.1 原始放射性同位素
- ^ 被认为会α衰变成141Ce,半衰期超过6×1016年
- ^ 被认为会α衰变成142Ce
- ^ 被认为会α衰变成144Ce,半衰期超过3.0×1018年
参考文獻[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. [2015-09-19]. (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.
元素與同位素的穩定度 | |||||||||||||||||||||||||||||||||
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