Pu
Plutonium
Z 94 244.0 g/molActinide Radioactive
| 221Pu | 127 | 221.0386 | 35,930.0 | --- | 100.0 µs | (9/2+) | α→217U SF | --- |
| 222Pu | 128 | 222.0376 | 35,060.0 | --- | 10.0 µs | 0+ | α→218U SF | --- |
| 223Pu | 129 | 223.0388 | 36,120.0 | --- | 10.0 µs | (9/2+) | α→219U SF | --- |
| 224Pu | 130 | 224.0379 | 35,280.0 | --- | 10.0 µs | 0+ | α→220U SF | --- |
| 225Pu | 131 | 225.039 | 36,300.0 | --- | 100.0 µs | (7/2+) | α→221U SF | --- |
| 226Pu | 132 | 226.0383 | 35,630.0 | --- | 10.0 ms | 0+ | α→222U SF | --- |
| 227Pu | 133 | 227.0395 | 36,770.0 | --- | 2.0 s | (5/2+) | α→223U | --- |
| 228Pu | 134 | 228.0388 | 36,108.0 | --- | 2.1 s | 0+ | α→224U(100%) β⁺→228Np | 1994 |
| 229Pu | 135 | 229.0401 | 37,390.0 | --- | 1.52 m | (3/2+) | α→225U(50%) β⁺→229Np(50%) SF(<7%) | 1994 |
| 230Pu | 136 | 230.0396 | 36,932.0 | --- | 1.75 m | 0+ | α→226U(100%) β⁺→230Np | 1990 |
| 231Pu | 137 | 231.0411 | 38,309.0 | --- | 8.6 m | (3/2+) | α→227U(13%) β⁺→231Np | 1999 |
| 232Pu | 138 | 232.0412 | 38,361.0 | --- | 33.7 m | 0+ | α→228U(<20%) EC→232Np | 1973 |
| 233Pu | 139 | 233.043 | 40,050.0 | --- | 20.9 m | (5/2+) | β⁺→233Np(~100%) α→229U(0.12%) | 1957 |
| 234Pu | 140 | 234.0433 | 40,350.0 | --- | 8.8 h | 0+ | EC→234Np(94%) α→230U(6%) | 1949 |
| 235Pu | 141 | 235.0453 | 42,182.0 | --- | 25.3 m | (5/2+) | β⁺→235Np(99.997%) α→231U(0.003%) | 1957 |
| 236Pu | 142 | 236.0461 | 42,901.5 | --- | 2.86 y | 0+ | α→232U(~100%) SF(1.9e-7%) CD→208Pb(2e-12%) β⁺ | 1949 |
| 236mPu | 142 | 236.0473 | 44,087.0 | --- | 1.2 µs | 5- | γ→236Pu(100%) | 2005 |
| 237Pu | 143 | 237.0484 | 45,091.7 | --- | 45.64 d | 7/2- | EC→237Np(99.996%) α→233U(0.004%) | 1949 |
| 237mPu | 143 | 237.0486 | 45,237.2 | --- | 180.0 ms | 1/2+ | γ→237Pu(100%) | 1972 |
| 237nPu | 143 | 237.0515 | 47,990.0 | --- | 1.1 µs | --- | SF(100%) γ→237Pu | 1970 |
| 238Pu | 144 | 238.0496 | 46,163.1 | --- | 87.7 y | 0+ | α→234U(~100%) SF(1.9e-7%) CD→206Hg(1.4e-14%) CD(6e-15%) | 1949 |
| 239Pu | 145 | 239.0522 | 48,588.2 | --- | 24.11 ky | 1/2+ | α→235U(~100%) SF(3.1e-10%) | 1946 |
| 239mPu | 145 | 239.0526 | 48,979.8 | --- | 193.0 ns | 7/2- | γ→239Pu(100%) | 1955 |
| 239nPu | 145 | 239.0555 | 51,690.0 | --- | 7.5 µs | (5/2+) | SF(100%) γ→239Pu | 1970 |
| 240Pu | 146 | 240.0538 | 50,125.3 | --- | 6.56 ky | 0+ | α→236U(~100%) SF(5.796e-6%) CD→206Hg(<1.3e-11%) | 1949 |
| 240mPu | 146 | 240.0552 | 51,434.0 | --- | 165.0 ns | 5- | γ→240Pu(100%) | 1967 |
| 241Pu | 147 | 241.0568 | 52,955.1 | --- | 14.33 y | 5/2+ | β⁻→241Am(~100%) α→237U(0.002%) SF(<2.4e-14%) | 1949 |
| 241mPu | 147 | 241.057 | 53,116.8 | --- | 880.0 ns | 1/2+ | γ→241Pu(100%) | 1975 |
| 241nPu | 147 | 241.0592 | 55,160.0 | --- | 20.5 µs | --- | SF(100%) | 1970 |
| 242Pu | 148 | 242.0587 | 54,716.9 | --- | 375.0 ky | 0+ | α→238U(~100%) SF(0.001%) | 1950 |
| 243Pu | 149 | 243.062 | 57,754.6 | --- | 4.96 h | 7/2+ | β⁻→243Am(100%) | 1951 |
| 243mPu | 149 | 243.0624 | 58,138.2 | --- | 330.0 ns | (1/2+) | γ→243Pu(100%) | 1975 |
| 244Pu | 150 | 244.0642 | 59,806.0 | --- | 81.3 My | 0+ | α→240U(99.877%) SF(0.123%) β⁻(<7.3e-9%) | 1954 |
| 244mPu | 150 | 244.0655 | 61,022.0 | --- | 1.75 s | 8- | γ→244Pu(100%) | 2016 |
| 245Pu | 151 | 245.0678 | 63,178.0 | --- | 10.5 h | (9/2-) | β⁻→245Am(100%) | 1955 |
| 245mPu | 151 | 245.0681 | 63,443.0 | --- | 330.0 ns | (5/2+) | γ→245Pu(100%) | 2007 |
| 245nPu | 151 | 245.07 | 65,180.0 | --- | 90.0 ns | --- | SF(100%) γ→245Pu | 1971 |
| 246Pu | 152 | 246.0702 | 65,395.0 | --- | 10.84 d | 0+ | β⁻→246Am(100%) | 1955 |
| 247Pu | 153 | 247.0743 | 69,210.0 | --- | 2.27 d | (1/2+) | β⁻→247Am(100%) | 1983 |