Th
Торій
Z 90 232,038 г/мольАктиноїд Радіоактивний
| 232Th | 142 | 232,0381 | 35 446,7 | 99,98% | 14,0 Гр | 0+ | α→228Ra(~100%) SF(1,1е-9%) CD(<2,78е-10%) β⁻ | 1898 |
| 230Th | 140 | 230,0331 | 30 862,5 | 0,02% | 75,4 кр | 0+ | α→226Ra(~100%) CD→206Hg(5,8е-11%) SF(<4е-12%) | 1907 |
| 208Th | 118 | 208,0179 | 16 690,0 | --- | 2,4 мс | 0+ | α→204Ra(100%) | 2010 |
| 209Th | 119 | 209,0176 | 16 400,0 | --- | 60,0 мс | (5/2-) | α→205Ra β⁺→209Ac | --- |
| 209mTh | 119 | 209,018 | 16 765,0 | --- | 3,1 мс | 13/2+ | α→205Ra(100%) β⁺→209Ac | 1996 |
| 210Th | 120 | 210,0151 | 14 060,0 | --- | 16,0 мс | 0+ | α→206Ra(100%) β⁺→210Ac | 1995 |
| 211Th | 121 | 211,0149 | 13 880,0 | --- | 48,0 мс | (5/2-) | α→207Ra(100%) β⁺→211Ac | 1995 |
| 212Th | 122 | 212,013 | 12 111,0 | --- | 31,7 мс | 0+ | α→208Ra(100%) β⁺→212Ac | 1980 |
| 213Th | 123 | 213,013 | 12 120,0 | --- | 144,0 мс | 5/2- | α→209Ra(100%) β⁺→213Ac | 1968 |
| 213mTh | 123 | 213,0143 | 13 300,0 | --- | 1,4 мкс | (13/2+) | γ→213Th(100%) | 2007 |
| 214Th | 124 | 214,0115 | 10 695,0 | --- | 87,0 мс | 0+ | α→210Ra(100%) β⁺→214Ac | 1968 |
| 214mTh | 124 | 214,0138 | 12 876,0 | --- | 1,24 мкс | (8+) | γ→214Th(100%) | 2007 |
| 215Th | 125 | 215,0117 | 10 921,0 | --- | 1,35 с | (1/2-) | α→211Ra(100%) | 1968 |
| 215mTh | 125 | 215,0133 | 12 390,0 | --- | 770,0 нс | (9/2+) | γ→215Th(100%) | 2005 |
| 216Th | 126 | 216,0111 | 10 299,0 | --- | 26,28 мс | 0+ | α→212Ra(100%) β⁺→216Ac | 1968 |
| 216mTh | 126 | 216,0132 | 12 340,0 | --- | 135,4 мкс | 8+ | γ→216Th(97,2%) α→212Ra(2,8%) | 1983 |
| 216nTh | 126 | 216,0139 | 12 947,0 | --- | 580,0 нс | (11-) | γ→216Th(100%) | 1983 |
| 217Th | 127 | 217,0131 | 12 206,0 | --- | 248,0 мкс | (9/2+) | α→213Ra(100%) | 1968 |
| 217mTh | 127 | 217,0138 | 12 879,0 | --- | 141,0 нс | (15/2-) | γ→217Th(100%) | 1989 |
| 217nTh | 127 | 217,0156 | 14 510,0 | --- | 71,0 мкс | (25/2+) | γ→217Th(100%) | 2002 |
| 218Th | 128 | 218,0133 | 12 367,0 | --- | 122,0 нс | 0+ | α→214Ra(100%) | 1973 |
| 219Th | 129 | 219,0155 | 14 460,0 | --- | 1,02 мкс | (9/2+) | α→215Ra(100%) β⁺→219Ac | 1973 |
| 220Th | 130 | 220,0158 | 14 690,0 | --- | 10,2 мкс | 0+ | α→216Ra(100%) EC→220Ac | 1973 |
| 221Th | 131 | 221,0182 | 16 940,0 | --- | 1,75 мс | (7/2+) | α→217Ra(100%) | 1970 |
| 222Th | 132 | 222,0185 | 17 203,0 | --- | 2,24 мс | 0+ | α→218Ra(100%) EC→222Ac | 1970 |
| 223Th | 133 | 223,0208 | 19 385,0 | --- | 600,0 мс | (5/2+) | α→219Ra(100%) | 1952 |
| 224Th | 134 | 224,0215 | 19 996,0 | --- | 1,04 с | 0+ | α→220Ra(100%) β⁺ | 1949 |
| 225Th | 135 | 225,024 | 22 310,0 | --- | 8,75 хв | 3/2+ | α→221Ra(90%) EC→225Ac | 1949 |
| 226Th | 136 | 226,0249 | 23 198,0 | --- | 30,7 хв | 0+ | α→222Ra(~100%) CD→208Pb(<3,2е-12%) | 1948 |
| 227Th | 137 | 227,0277 | 25 804,8 | --- | 18,69 д | (1/2+) | α→223Ra(100%) | 1906 |
| 228Th | 138 | 228,0287 | 26 770,9 | --- | 1,91 р | 0+ | α→224Ra(~100%) CD→208Pb(1,13е-11%) | 1905 |
| 229Th | 139 | 229,0318 | 29 585,5 | --- | 7,92 кр | 5/2+ | α→225Ra(100%) | 1947 |
| 229mTh | 139 | 229,0318 | 29 585,5 | --- | 7,0 мкс | (3/2+) | γ→229Th(100%) | 1994 |
| 231Th | 141 | 231,0363 | 33 815,8 | --- | 1,06 д | 5/2+ | β⁻→231Pa(100%) | 1911 |
| 233Th | 143 | 233,0416 | 38 731,6 | --- | 21,83 хв | 1/2+ | β⁻→233Pa(100%) | 1935 |
| 233mTh | 143 | 233,0416 | 38 737,7 | --- | 2,0 с | (7/2-) | γ→233Th β⁻→233Pa | --- |
| 234Th | 144 | 234,0436 | 40 613,0 | --- | 24,11 д | 0+ | β⁻→234Pa(100%) α→230Ra | 1900 |
| 235Th | 145 | 235,0473 | 44 018,0 | --- | 7,2 хв | (1/2+) | β⁻→235Pa(100%) | 1969 |
| 236Th | 146 | 236,0497 | 46 255,0 | --- | 37,3 хв | 0+ | β⁻→236Pa(100%) | 1973 |
| 237Th | 147 | 237,0536 | 49 955,0 | --- | 4,8 хв | (5/2+) | β⁻→237Pa(100%) | 1993 |
| 238Th | 148 | 238,0564 | 52 530,0 | --- | 9,4 хв | 0+ | β⁻→238Pa(100%) | 1999 |
| 239Th | 149 | 239,0607 | 56 500,0 | --- | 1,0 хв | (7/2+) | β⁻→239Pa | --- |