Pb
Lead
Z 82 207.2 g/molPost-Transition Metal
| 208Pb | 126 | 207.9767 | -21,748.5 | 52.4% | Stable | 0+ | α→204Hg | 1927 |
| 206Pb | 124 | 205.9745 | -23,785.5 | 24.1% | Stable | 0+ | α→202Hg | 1927 |
| 207Pb | 125 | 206.9759 | -22,452.0 | 22.1% | Stable | 1/2- | α→203Hg | 1927 |
| 204Pb | 122 | 203.973 | -25,109.8 | 1.4% | Stable | 0+ | α→200Hg | 1932 |
| 178Pb | 96 | 178.0038 | 3,573.0 | --- | 250.0 µs | 0+ | α→174Hg(100%) β⁺→178Tl | 2001 |
| 179Pb | 97 | 179.0022 | 2,050.0 | --- | 2.7 ms | (9/2-) | α→175Hg(100%) | 2010 |
| 180Pb | 98 | 179.9979 | -1,941.0 | --- | 4.1 ms | 0+ | α→176Hg(100%) | 1996 |
| 181Pb | 99 | 180.9967 | -3,110.0 | --- | 39.0 ms | (9/2-) | α→177Hg(100%) β⁺→181Tl | 1989 |
| 181mPb | 99 | 181.0 | 0.0 | --- | --- | (13/2+) | --- | --- |
| 182Pb | 100 | 181.9927 | -6,825.0 | --- | 55.0 ms | 0+ | α→178Hg(100%) β⁺→182Tl | 1986 |
| 183Pb | 101 | 182.9919 | -7,580.0 | --- | 535.0 ms | 3/2- | α→179Hg(100%) β⁺→183Tl | 1980 |
| 183mPb | 101 | 182.992 | -7,486.0 | --- | 415.0 ms | 13/2+ | α→179Hg(100%) β⁺→183Tl γ→183Pb | 1980 |
| 184Pb | 102 | 183.9881 | -11,052.0 | --- | 490.0 ms | 0+ | α→180Hg(80%) β⁺→184Tl | 1980 |
| 185Pb | 103 | 184.9876 | -11,541.0 | --- | 6.3 s | 3/2- | β⁺→185Tl(66%) α→181Hg(34%) | 1975 |
| 185mPb | 103 | 184.9877 | -11,470.0 | --- | 4.07 s | 13/2+ | α→181Hg(50%) β⁺→185Tl | 1975 |
| 186Pb | 104 | 185.9842 | -14,681.0 | --- | 4.82 s | 0+ | α→182Hg(40%) β⁺→186Tl | 1972 |
| 187Pb | 105 | 186.9839 | -14,987.0 | --- | 15.2 s | 3/2- | β⁺→187Tl(90.5%) α→183Hg(9.5%) | 1972 |
| 187mPb | 105 | 186.9839 | -14,968.0 | --- | 18.3 s | 13/2+ | β⁺→187Tl(88%) α→183Hg(12%) | 1972 |
| 188Pb | 106 | 187.9809 | -17,811.0 | --- | 25.1 s | 0+ | β⁺→188Tl(91.5%) α→184Hg(8.5%) | 1972 |
| 188mPb | 106 | 187.9836 | -15,234.0 | --- | 800.0 ns | 8- | γ→188Pb(100%) | 1999 |
| 188nPb | 106 | 187.9838 | -15,101.0 | --- | 94.0 ns | 12+ | γ→188Pb(100%) | 2004 |
| 189Pb | 107 | 188.9808 | -17,844.0 | --- | 39.0 s | 3/2- | β⁺→189Tl(99.58%) α→185Hg(0.42%) | 1972 |
| 189mPb | 107 | 188.9809 | -17,804.0 | --- | 50.5 s | 13/2+ | β⁺→189Tl(~100%) α→185Hg(0.4%) γ→189Pb | 2009 |
| 189nPb | 107 | 188.9835 | -15,369.0 | --- | 26.0 µs | 31/2- | γ→189Pb(100%) | 2005 |
| 190Pb | 108 | 189.9781 | -20,417.0 | --- | 1.18 m | 0+ | β⁺→190Tl(99.6%) α→186Hg(0.4%) | 1972 |
| 190mPb | 108 | 189.9809 | -17,802.0 | --- | 150.0 ns | 10+ | γ→190Pb(100%) | 1998 |
| 190nPb | 108 | 189.9809 | -17,750.0 | --- | 24.3 µs | (12+) | γ→190Pb(100%) | 1998 |
| 191Pb | 109 | 190.9782 | -20,291.0 | --- | 1.33 m | 3/2- | β⁺→191Tl(~100%) α→187Hg(0.51%) | 1974 |
| 191mPb | 109 | 190.9783 | -20,234.0 | --- | 2.18 m | 13/2+ | β⁺→191Tl(~100%) α→187Hg(0.02%) | 1975 |
| 191nPb | 109 | 190.9811 | -17,632.0 | --- | 180.0 ns | 33/2+ | γ→191Pb(100%) | 1999 |
| 192Pb | 110 | 191.9758 | -22,552.0 | --- | 3.5 m | 0+ | β⁺→192Tl(~100%) α→188Hg(0.006%) | 1974 |
| 192mPb | 110 | 191.9786 | -19,971.0 | --- | 166.0 ns | 10+ | γ→192Pb(100%) | 1985 |
| 192nPb | 110 | 191.9786 | -19,927.0 | --- | 1.09 µs | 12+ | γ→192Pb(100%) | 1979 |
| 193Pb | 111 | 192.9761 | -22,229.0 | --- | 4.0 m | (3/2-) | β⁺→193Tl | 1974 |
| 193mPb | 111 | 192.9762 | -22,137.0 | --- | 5.8 m | 13/2+ | β⁺→193Tl(100%) | 1974 |
| 193nPb | 111 | 192.979 | -19,522.0 | --- | 180.0 ns | 33/2+ | γ→193Pb(100%) | 1991 |
| 194Pb | 112 | 193.974 | -24,208.0 | --- | 10.7 m | 0+ | β⁺→194Tl(~100%) α→190Hg(7.3e-6%) | 1960 |
| 194mPb | 112 | 193.9768 | -21,580.0 | --- | 370.0 ns | 12+ | γ→194Pb(100%) | 1972 |
| 194nPb | 112 | 193.9772 | -21,275.0 | --- | 133.0 ns | 11- | γ→194Pb(100%) | 1986 |
| 195Pb | 113 | 194.9745 | -23,738.0 | --- | 15.0 m | 3/2- | β⁺→195Tl(100%) | 1957 |
| 195mPb | 113 | 194.9747 | -23,535.0 | --- | 15.0 m | 13/2+ | β⁺→195Tl(100%) γ→195Pb | 1957 |
| 195nPb | 113 | 194.9764 | -21,979.0 | --- | 10.0 µs | 21/2- | γ→195Pb(100%) | 1976 |
| 196Pb | 114 | 195.9728 | -25,348.0 | --- | 37.0 m | 0+ | β⁺→196Tl(~100%) α→192Hg(<3e-5%) | 1957 |
| 196mPb | 114 | 196.0 | 0.0 | --- | --- | 4+ | γ→196Pb(100%) | 1973 |
| 196nPb | 114 | 195.9747 | -23,550.0 | --- | 140.0 ns | 5- | γ→196Pb(100%) | 1973 |
| 197Pb | 115 | 196.9734 | -24,745.0 | --- | 8.1 m | 3/2- | β⁺→197Tl(100%) | 1955 |
| 197mPb | 115 | 196.9738 | -24,426.0 | --- | 42.9 m | 13/2+ | β⁺→197Tl(81%) γ→197Pb(19%) | 1957 |
| 197nPb | 115 | 196.9755 | -22,831.0 | --- | 1.15 µs | 21/2- | γ→197Pb(100%) | 1978 |
| 198Pb | 116 | 197.972 | -26,067.0 | --- | 2.4 h | 0+ | β⁺→198Tl(100%) | 1955 |
| 198mPb | 116 | 197.9743 | -23,926.0 | --- | 4.12 µs | 7- | γ→198Pb(100%) | 1972 |
| 198nPb | 116 | 197.9744 | -23,836.0 | --- | 137.0 ns | 9- | γ→198Pb(100%) | 1989 |
| 199Pb | 117 | 198.9729 | -25,232.0 | --- | 1.5 h | 3/2- | β⁺→199Tl(100%) | 1950 |
| 199mPb | 117 | 198.9734 | -24,803.0 | --- | 12.2 m | (13/2+) | γ→199Pb(100%) β⁺→199Tl | 1955 |
| 199nPb | 117 | 198.9757 | -22,668.0 | --- | 10.1 µs | (29/2-) | γ→199Pb(100%) | 1981 |
| 200Pb | 118 | 199.9718 | -26,251.0 | --- | 21.5 h | 0+ | EC→200Tl(100%) | 1950 |
| 200mPb | 118 | 199.9742 | -24,068.0 | --- | 456.0 ns | (9-) | γ→200Pb(100%) | 1972 |
| 200nPb | 118 | 199.975 | -23,245.0 | --- | 198.0 ns | (12+) | γ→200Pb(100%) | 1975 |
| 201Pb | 119 | 200.9729 | -25,271.0 | --- | 9.33 h | 5/2- | β⁺→201Tl(100%) | 1950 |
| 201mPb | 119 | 200.9735 | -24,642.0 | --- | 1.01 m | 13/2+ | γ→201Pb(100%) β⁺→201Tl | 1952 |
| 201nPb | 119 | 200.976 | -22,318.0 | --- | 508.0 ns | (29/2-) | γ→201Pb(100%) | 1981 |
| 202Pb | 120 | 201.9722 | -25,941.0 | --- | 52.5 ky | 0+ | EC→202Tl(100%) | 1954 |
| 202mPb | 120 | 201.9745 | -23,771.0 | --- | 3.54 h | 9- | γ→202Pb(90.5%) β⁺→202Tl(9.5%) | 1954 |
| 202nPb | 120 | 201.9766 | -21,800.0 | --- | 100.0 ns | 16+ | γ→202Pb(100%) | 1986 |
| 203Pb | 121 | 202.9734 | -24,786.0 | --- | 2.16 d | 5/2- | EC→203Tl(100%) | 1942 |
| 203mPb | 121 | 202.9743 | -23,961.0 | --- | 6.21 s | 13/2+ | γ→203Pb(100%) | 1955 |
| 203nPb | 121 | 202.9766 | -21,837.0 | --- | 480.0 ms | 29/2- | γ→203Pb(100%) | 1977 |
| 204mPb | 122 | 203.9744 | -23,835.7 | --- | 265.0 ns | 4+ | γ→204Pb(100%) | 1963 |
| 204nPb | 122 | 203.9754 | -22,923.9 | --- | 1.12 h | 9- | γ→204Pb(100%) | 1956 |
| 205Pb | 123 | 204.9745 | -23,770.2 | --- | 17.0 My | 5/2- | EC→205Tl(100%) | 1954 |
| 205mPb | 123 | 204.9745 | -23,767.9 | --- | 24.2 µs | 1/2- | γ→205Pb(100%) | 1994 |
| 205nPb | 123 | 204.9756 | -22,756.4 | --- | 5.55 ms | 13/2+ | γ→205Pb(100%) | 1960 |
| 206mPb | 124 | 205.9768 | -21,585.3 | --- | 125.0 µs | 7- | γ→206Pb(100%) | 1953 |
| 206nPb | 124 | 205.9788 | -19,758.2 | --- | 202.0 ns | 12+ | γ→206Pb(100%) | 1971 |
| 207mPb | 125 | 206.9777 | -20,818.6 | --- | 806.0 ms | 13/2+ | γ→207Pb(100%) | 1951 |
| 208mPb | 126 | 207.9819 | -16,853.3 | --- | 535.0 ns | 10+ | γ→208Pb(100%) | 1998 |
| 209Pb | 127 | 208.9811 | -17,614.6 | --- | 3.24 h | 9/2+ | β⁻→209Bi(100%) | 1940 |
| 210Pb | 128 | 209.9842 | -14,728.4 | --- | 22.2 y | 0+ | β⁻→210Bi(~100%) α→206Hg(1.9e-6%) | 1900 |
| 210mPb | 128 | 209.9855 | -13,533.8 | --- | 92.0 ns | 6+ | γ→210Pb(100%) | 2018 |
| 210nPb | 128 | 209.9856 | -13,453.6 | --- | 201.0 ns | 8+ | γ→210Pb(100%) | 1980 |
| 211Pb | 129 | 210.9887 | -10,493.0 | --- | 36.16 m | 9/2+ | β⁻→211Bi(100%) | 1904 |
| 211mPb | 129 | 210.9906 | -8,774.0 | --- | 159.0 ns | (27/2+) | γ→211Pb(100%) | 2005 |
| 212Pb | 130 | 211.9919 | -7,548.9 | --- | 10.63 h | 0+ | β⁻→212Bi(100%) | 1905 |
| 212mPb | 130 | 211.9933 | -6,213.9 | --- | 6.0 µs | (8+) | γ→212Pb(100%) | 1998 |
| 213Pb | 131 | 212.9966 | -3,204.0 | --- | 10.2 m | (9/2+) | β⁻→213Bi(100%) | 1964 |
| 213mPb | 131 | 212.998 | -1,873.0 | --- | 260.0 ns | (21/2+) | γ→213Pb(100%) | 2020 |
| 214Pb | 132 | 213.9998 | -183.0 | --- | 27.06 m | 0+ | β⁻→214Bi(100%) | 1904 |
| 214mPb | 132 | 214.0013 | 1,237.0 | --- | 6.2 µs | (8+) | γ→214Pb(100%) | 2012 |
| 215Pb | 133 | 215.0047 | 4,340.0 | --- | 2.37 m | (9/2+) | β⁻→215Bi(100%) | 1998 |
| 216Pb | 134 | 216.0081 | 7,510.0 | --- | 1.66 m | 0+ | β⁻→216Bi(100%) | 2010 |
| 216mPb | 134 | 216.0097 | 9,020.0 | --- | 400.0 ns | (8+) | γ→216Pb(100%) | 2012 |
| 217Pb | 135 | 217.0132 | 12,260.0 | --- | 19.9 s | (9/2+) | β⁻→217Bi(100%) | 2010 |
| 218Pb | 136 | 218.0168 | 15,630.0 | --- | 14.8 s | 0+ | β⁻→218Bi(100%) | 2009 |
| 219Pb | 137 | 219.0221 | 20,620.0 | --- | 3.0 s | (11/2+) | β⁻→219Bi | 2009 |
| 220Pb | 138 | 220.0259 | 24,130.0 | --- | 1.0 s | 0+ | β⁻→220Bi | 2010 |