Изотопы тория
Изотопы тория —
Таблица изотопов торияПравить
Символ изотопа |
Z(p) | N(n) | Масса изотопа (а. е. м) |
Период полураспада | Ядерный спин |
Содержание изотопа в природном элементе | Вариация содержания изотопа в природном элементе |
---|---|---|---|---|---|---|---|
excitation energy | |||||||
209Th | 90 | 119 | 209.01772(11) | 7(5) ms [3.8(+69-15)] | 5/2- | ||
210Th | 90 | 120 | 210.015075(27) | 17(11) ms [9(+17-4) ms] | 0+ | ||
211Th | 90 | 121 | 211.01493(8) | 48(20) ms [0.04(+3-1) s] | 5/2- | ||
212Th | 90 | 122 | 212.01298(2) | 36(15) ms [30(+20-10) ms] | 0+ | ||
213Th | 90 | 123 | 213.01301(8) | 140(25) ms | 5/2- | ||
214Th | 90 | 124 | 214.011500(18) | 100(25) ms | 0+ | ||
215Th | 90 | 125 | 215.011730(29) | 1.2(2) s | (1/2-) | ||
216Th | 90 | 126 | 216.011062(14) | 26.8(3) ms | 0+ | ||
216m1Th | 2042(13) кэВ | 137(4) µs | (8+) | ||||
216m2Th | 2637(20) кэВ | 615(55) ns | (11-) | ||||
217Th | 90 | 127 | 217.013114(22) | 240(5) µs | (9/2+) | ||
218Th | 90 | 128 | 218.013284(14) | 109(13) ns | 0+ | ||
219Th | 90 | 129 | 219.01554(5) | 1.05(3) µs | 9/2+ | ||
220Th | 90 | 130 | 220.015748(24) | 9.7(6) µs | 0+ | ||
221Th | 90 | 131 | 221.018184(10) | 1.73(3) ms | (7/2+) | ||
222Th | 90 | 132 | 222.018468(13) | 2.237(13) ms | 0+ | ||
223Th | 90 | 133 | 223.020811(10) | 0.60(2) s | (5/2)+ | ||
224Th | 90 | 134 | 224.021467(12) | 1.05(2) s | 0+ | ||
225Th | 90 | 135 | 225.023951(5) | 8.72(4) min | (3/2)+ | ||
226Th | 90 | 136 | 226.024903(5) | 30.57(10) min | 0+ | ||
227Th | 90 | 137 | 227.0277041(27) | 18.68(9) d | 1/2+ | ||
228Th | 90 | 138 | 228.0287411(24) | 1.9116(16) a | 0+ | ||
229Th | 90 | 139 | 229.031762(3) | 7.34(16)E+3 a | 5/2+ | ||
229mTh | 0.0076(5) кэВ | 70(50) h | 3/2+ | ||||
230Th | 90 | 140 | 230.0331338(19) | 7.538(30)E+4 a | 0+ | ||
231Th | 90 | 141 | 231.0363043(19) | 25.52(1) h | 5/2+ | ||
232Th | 90 | 142 | 232.0380553(21) | 1.405(6)E+10 a | 0+ | 1.0000 | |
233Th | 90 | 143 | 233.0415818(21) | 21.83(4) min | 1/2+ | ||
234Th | 90 | 144 | 234.043601(4) | 24.10(3) d | 0+ | ||
235Th | 90 | 145 | 235.04751(5) | 7.2(1) min | (1/2+) | ||
236Th | 90 | 146 | 236.04987(21) | 37.5(2) min | 0+ | ||
237Th | 90 | 147 | 237.05389(39) | 4.8(5) min | 5/2+ | ||
238Th | 90 | 148 | 238.0565(3) | 9.4(20) min | 0+ |