釓嘅同位素
釓嘅同位素入面,有5個係穩定嘅。
圖表
編輯符號 | Z(p) | N(n) | 質量(u) | 半衰期 | 原子核自旋 | 相對豐度 | 相對豐度嘅變化率 |
---|---|---|---|---|---|---|---|
激發能量 | |||||||
134Gd | 64 | 70 | 133.95537(43)# | 0.4# s | 0+ | ||
135Gd | 64 | 71 | 134.95257(54)# | 1.1(2) s | 3/2- | ||
136Gd | 64 | 72 | 135.94734(43)# | 1# s [>200 ns] | |||
137Gd | 64 | 73 | 136.94502(43)# | 2.2(2) s | 7/2+# | ||
138Gd | 64 | 74 | 137.94012(21)# | 4.7(9) s | 0+ | ||
138mGd | 2232.7(11) keV | 6(1) µs | (8-) | ||||
139Gd | 64 | 75 | 138.93824(21)# | 5.7(3) s | 9/2-# | ||
139mGd | 250(150)# keV | 4.8(9) s | 1/2+# | ||||
140Gd | 64 | 76 | 139.93367(3) | 15.8(4) s | 0+ | ||
141Gd | 64 | 77 | 140.932126(21) | 14(4) s | (1/2+) | ||
141mGd | 377.8(2) keV | 24.5(5) s | (11/2-) | ||||
142Gd | 64 | 78 | 141.92812(3) | 70.2(6) s | 0+ | ||
143Gd | 64 | 79 | 142.92675(22) | 39(2) s | (1/2)+ | ||
143mGd | 152.6(5) keV | 110.0(14) s | (11/2-) | ||||
144Gd | 64 | 80 | 143.92296(3) | 4.47(6) min | 0+ | ||
145Gd | 64 | 81 | 144.921709(20) | 23.0(4) min | 1/2+ | ||
145mGd | 749.1(2) keV | 85(3) s | 11/2- | ||||
146Gd | 64 | 82 | 145.918311(5) | 48.27(10) d | 0+ | ||
147Gd | 64 | 83 | 146.919094(3) | 38.06(12) h | 7/2- | ||
147mGd | 8587.8(4) keV | 510(20) ns | (49/2+) | ||||
148Gd | 64 | 84 | 147.918115(3) | 74.6(30) a | 0+ | ||
149Gd | 64 | 85 | 148.919341(4) | 9.28(10) d | 7/2- | ||
150Gd | 64 | 86 | 149.918659(7) | 1.79(8)E+6 a | 0+ | ||
151Gd | 64 | 87 | 150.920348(4) | 124(1) d | 7/2- | ||
152Gd | 64 | 88 | 151.9197910(27) | 1.08(8)E+14 a | 0+ | 0.0020(1) | |
153Gd | 64 | 89 | 152.9217495(27) | 240.4(10) d | 3/2- | ||
153m1Gd | 95.1737(12) keV | 3.5(4) µs | (9/2+) | ||||
153m2Gd | 171.189(5) keV | 76.0(14) µs | (11/2-) | ||||
154Gd | 64 | 90 | 153.9208656(27) | 穩定 | 0+ | 0.0218(3) | |
155Gd | 64 | 91 | 154.9226220(27) | 穩定 | 3/2- | 0.1480(12) | |
155mGd | 121.05(19) keV | 31.97(27) ms | 11/2- | ||||
156Gd | 64 | 92 | 155.9221227(27) | 穩定 | 0+ | 0.2047(9) | |
156mGd | 2137.60(5) keV | 1.3(1) µs | 7- | ||||
157Gd | 64 | 93 | 156.9239601(27) | 穩定 | 3/2- | 0.1565(2) | |
158Gd | 64 | 94 | 157.9241039(27) | 穩定 | 0+ | 0.2484(7) | |
159Gd | 64 | 95 | 158.9263887(27) | 18.479(4) h | 3/2- | ||
160Gd | 64 | 96 | 159.9270541(27) | 穩定 [>31E+18 a] | 0+ | 0.2186(19) | |
161Gd | 64 | 97 | 160.9296692(29) | 3.646(3) min | 5/2- | ||
162Gd | 64 | 98 | 161.930985(5) | 8.4(2) min | 0+ | ||
163Gd | 64 | 99 | 162.93399(32)# | 68(3) s | 7/2+# | ||
164Gd | 64 | 100 | 163.93586(43)# | 45(3) s | 0+ | ||
165Gd | 64 | 101 | 164.93938(54)# | 10.3(16) s | 1/2-# | ||
166Gd | 64 | 102 | 165.94160(64)# | 4.8(10) s | 0+ | ||
167Gd | 64 | 103 | 166.94557(64)# | 3# s | 5/2-# | ||
168Gd | 64 | 104 | 167.94836(75)# | 300# ms | 0+ | ||
169Gd | 64 | 105 | 168.95287(86)# | 1# s | 7/2-# |
備註:有#嘅數據代表冇經過實驗嘅證明,只係理論推測,而用咗括號括係代表數據唔確定。
參攷
編輯- 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). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005).
- 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, Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (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.
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