Hg
Mercury
Z 80 200.592 g/molTransition Metal
| 202Hg | 122 | 201.9706 | -27,345.3 | 29.74% | Stable | 0+ | --- | 1920 |
| 200Hg | 120 | 199.9683 | -29,503.3 | 23.14% | Stable | 0+ | --- | 1925 |
| 199Hg | 119 | 198.9683 | -29,546.1 | 16.94% | Stable | 1/2- | --- | 1925 |
| 201Hg | 121 | 200.9703 | -27,662.5 | 13.17% | Stable | 3/2- | --- | 1925 |
| 198Hg | 118 | 197.9668 | -30,954.3 | 10.04% | Stable | 0+ | --- | 1925 |
| 204Hg | 124 | 203.9735 | -24,690.1 | 6.82% | Stable | 0+ | β⁻ | 1920 |
| 196Hg | 116 | 195.9658 | -31,825.9 | 0.15% | Stable | 0+ | β⁺ | 1930 |
| 170Hg | 90 | 170.0058 | 5,420.0 | --- | 310.0 µs | 0+ | α→166Pt(100%) | 2019 |
| 171Hg | 91 | 171.0036 | 3,340.0 | --- | 70.0 µs | (3/2-) | α→167Pt(100%) β⁺→171Au | 2004 |
| 172Hg | 92 | 171.9989 | -1,060.0 | --- | 231.0 µs | 0+ | α→168Pt(100%) β⁺→172Au | 1999 |
| 173Hg | 93 | 172.9971 | -2,660.0 | --- | 800.0 µs | (7/2-) | α→169Pt(100%) | 1999 |
| 174Hg | 94 | 173.9929 | -6,641.0 | --- | 2.0 ms | 0+ | α→170Pt(100%) β⁺→174Au | 1997 |
| 175Hg | 95 | 174.9914 | -7,970.0 | --- | 10.2 ms | (7/2-) | α→171Pt(100%) β⁺→175Au | 1983 |
| 175mHg | 95 | 174.992 | -7,480.0 | --- | 340.0 ns | (13/2+) | γ→175Hg(100%) | 2009 |
| 176Hg | 96 | 175.9873 | -11,785.0 | --- | 20.3 ms | 0+ | α→172Pt(90%) β⁺→176Au | 1983 |
| 177Hg | 97 | 176.9863 | -12,780.0 | --- | 117.0 ms | 7/2- | α→173Pt(100%) β⁺→177Au | 1975 |
| 177mHg | 97 | 176.9866 | -12,460.0 | --- | 1.5 µs | 13/2+ | γ→177Hg(100%) | 2003 |
| 178Hg | 98 | 177.9825 | -16,315.0 | --- | 266.5 ms | 0+ | α→174Pt(89%) β⁺→178Au | 1971 |
| 179Hg | 99 | 178.9818 | -16,933.0 | --- | 1.05 s | 7/2- | α→175Pt(75%) β⁺→179Au(24.85%) β⁺p→178Pt(0.15%) | 1970 |
| 179mHg | 99 | 178.982 | -16,762.0 | --- | 6.4 µs | 13/2+ | γ→179Hg(100%) | 2002 |
| 180Hg | 100 | 179.9783 | -20,251.0 | --- | 2.59 s | 0+ | β⁺→180Au(52%) α→176Pt(48%) | 1970 |
| 181Hg | 101 | 180.9778 | -20,661.0 | --- | 3.6 s | 1/2- | β⁺→181Au(72.986%) α→177Pt(27%) β⁺p→180Pt(0.014%) β⁺α→177Ir(9e-6%) | 1969 |
| 181mHg | 101 | 180.978 | -20,450.0 | --- | 480.0 µs | 13/2+ | γ→181Hg(100%) | 2009 |
| 182Hg | 102 | 181.9747 | -23,577.0 | --- | 10.83 s | 0+ | β⁺→182Au(86.2%) α→178Pt(13.8%) β⁺p→181Pt(<1e-5%) | 1968 |
| 183Hg | 103 | 182.9744 | -23,805.0 | --- | 9.4 s | 1/2- | β⁺→183Au(88.3%) α→179Pt(11.7%) β⁺p→182Pt(2.6e-4%) | 1969 |
| 183mHg | 103 | 182.9747 | -23,601.0 | --- | --- | (13/2+) | γ→183Hg β⁺→183Au | 1981 |
| 184Hg | 104 | 183.9717 | -26,345.0 | --- | 30.87 s | 0+ | β⁺→184Au(98.89%) α→180Pt(1.11%) | 1969 |
| 185Hg | 105 | 184.9719 | -26,184.0 | --- | 49.1 s | 1/2- | β⁺→185Au(94%) α→181Pt(6%) | 1960 |
| 185mHg | 105 | 184.972 | -26,080.0 | --- | 21.6 s | 13/2+ | γ→185Hg(54%) β⁺→185Au(46%) α→181Pt(0.03%) | 1970 |
| 186Hg | 106 | 185.9694 | -28,539.0 | --- | 1.38 m | 0+ | β⁺→186Au(~100%) α→182Pt(0.016%) | 1960 |
| 186mHg | 106 | 185.9717 | -26,322.0 | --- | 82.0 µs | (8-) | γ→186Hg(100%) | 1984 |
| 187Hg | 107 | 186.9698 | -28,119.0 | --- | 1.9 m | 3/2- | β⁺→187Au(100%) α→183Pt | 1960 |
| 187mHg | 107 | 186.9699 | -28,060.0 | --- | 2.4 m | 13/2+ | β⁺→187Au(100%) α→183Pt | 1970 |
| 188Hg | 108 | 187.9676 | -30,198.0 | --- | 3.25 m | 0+ | β⁺→188Au(~100%) α→184Pt(3.7e-5%) | 1960 |
| 188mHg | 108 | 187.9705 | -27,474.0 | --- | 142.0 ns | 12+ | γ→188Hg(100%) | 1983 |
| 189Hg | 109 | 188.9682 | -29,630.0 | --- | 7.6 m | 3/2- | β⁺→189Au(100%) α→185Pt | 1955 |
| 189mHg | 109 | 188.9683 | -29,548.0 | --- | 8.6 m | 13/2+ | β⁺→189Au(100%) α→185Pt | 1966 |
| 190Hg | 110 | 189.9663 | -31,371.0 | --- | 20.0 m | 0+ | β⁺→190Au(100%) α→186Pt | 1959 |
| 191Hg | 111 | 190.9672 | -30,592.0 | --- | 49.0 m | 3/2- | β⁺→191Au(100%) α→187Pt | 1954 |
| 191mHg | 111 | 190.9673 | -30,460.0 | --- | 50.8 m | 13/2+ | β⁺→191Au(100%) γ→191Hg α→187Pt | 1954 |
| 192Hg | 112 | 191.9656 | -32,011.0 | --- | 4.85 h | 0+ | EC→192Au(100%) α→188Pt | 1952 |
| 193Hg | 113 | 192.9667 | -31,062.0 | --- | 3.8 h | 3/2- | β⁺→193Au(100%) | 1952 |
| 193mHg | 113 | 192.9668 | -30,921.0 | --- | 11.8 h | 13/2+ | β⁺→193Au(92.8%) γ→193Hg(7.2%) | 1973 |
| 194Hg | 114 | 193.9654 | -32,184.0 | --- | 447.0 y | 0+ | EC→194Au(100%) | 1962 |
| 195Hg | 115 | 194.9667 | -31,013.0 | --- | 10.69 h | 1/2- | β⁺→195Au(100%) | 1952 |
| 195mHg | 115 | 194.9669 | -30,837.0 | --- | 1.73 d | 13/2+ | γ→195Hg(54.2%) β⁺→195Au(45.8%) | 1951 |
| 197Hg | 117 | 196.9672 | -30,540.0 | --- | 2.71 d | 1/2- | EC→197Au(100%) | 1941 |
| 197mHg | 117 | 196.9675 | -30,241.0 | --- | 23.82 h | 13/2+ | γ→197Hg(94.68%) EC→197Au(5.32%) | 1943 |
| 199mHg | 119 | 198.9689 | -29,013.6 | --- | 42.67 m | 13/2+ | γ→199Hg(100%) | 1948 |
| 201mHg | 121 | 200.9711 | -26,896.3 | --- | 94.0 µs | 13/2+ | γ→201Hg(100%) | 1961 |
| 203Hg | 123 | 202.9729 | -25,269.2 | --- | 46.61 d | 5/2- | β⁻→203Tl(100%) | 1943 |
| 203mHg | 123 | 202.9739 | -24,336.1 | --- | 22.1 µs | (13/2+) | γ→203Hg(100%) | 1964 |
| 203nHg | 123 | 202.9818 | -16,987.9 | --- | 146.0 ns | (53/2+) | γ→203Hg(100%) | 2011 |
| 204nHg | 124 | 203.9813 | -17,464.0 | --- | --- | 22+ | γ→204Hg(100%) | 2015 |
| 205Hg | 125 | 204.9761 | -22,288.0 | --- | 5.14 m | 1/2- | β⁻→205Tl(100%) | 1940 |
| 205mHg | 125 | 204.9777 | -20,732.0 | --- | 1.09 ms | 13/2+ | γ→205Hg(100%) | 1985 |
| 205nHg | 125 | 204.9796 | -18,971.0 | --- | 5.89 µs | (23/2-) | γ→205Hg(100%) | 2011 |
| 206Hg | 126 | 205.9775 | -20,946.0 | --- | 8.32 m | 0+ | β⁻→206Tl(100%) | 1961 |
| 206mHg | 126 | 205.9798 | -18,844.0 | --- | 2.09 µs | 5- | γ→206Hg(100%) | 1982 |
| 206nHg | 126 | 205.9815 | -17,224.0 | --- | 106.0 ns | (10+) | γ→206Hg(100%) | 2001 |
| 207Hg | 127 | 206.9823 | -16,487.0 | --- | 2.9 m | 9/2+ | β⁻→207Tl(100%) | 1982 |
| 208Hg | 128 | 207.9858 | -13,270.0 | --- | 2.25 m | 0+ | β⁻→208Tl(100%) | 1994 |
| 208mHg | 128 | 207.9872 | -11,930.0 | --- | 99.0 ns | (8+) | γ→208Hg(100%) | 2009 |
| 209Hg | 129 | 208.9908 | -8,610.0 | --- | 6.3 s | (9/2+) | β⁻→209Tl(100%) β⁻n→208Tl | 1998 |
| 210Hg | 130 | 209.9943 | -5,300.0 | --- | 1.07 m | 0+ | β⁻→210Tl(97.8%) β⁻n→209Tl(2.2%) | 1998 |
| 210mHg | 130 | 209.995 | -4,640.0 | --- | 2.1 µs | (3-) | γ→210Hg(100%) | 2013 |
| 210nHg | 130 | 209.9958 | -3,890.0 | --- | 2.0 µs | (8+) | γ→210Hg(100%) | 2013 |
| 211Hg | 131 | 210.9996 | -390.0 | --- | 26.4 s | (9/2+) | β⁻→211Tl(93.7%) β⁻n→210Tl(6.3%) | 2010 |
| 212Hg | 132 | 212.0032 | 3,020.0 | --- | 30.0 s | 0+ | β⁻→212Tl β⁻n→211Tl | 2010 |
| 213Hg | 133 | 213.0088 | 8,200.0 | --- | 15.0 s | (9/2+) | β⁻→213Tl β⁻n→212Tl | 2010 |
| 214Hg | 134 | 214.0126 | 11,770.0 | --- | 8.0 s | 0+ | β⁻→214Tl β⁻n→213Tl | 2010 |
| 215Hg | 135 | 215.0184 | 17,110.0 | --- | 600.0 ms | (9/2+) | β⁻→215Tl β⁻n→214Tl | 2010 |
| 216Hg | 136 | 216.0225 | 20,920.0 | --- | 2.0 s | 0+ | β⁻→216Tl β⁻n→215Tl | 2010 |