Ru
Ruthenium
Z 44 101.07 g/molTransition Metal
| 102Ru | 58 | 101.9043 | -89,106.4 | 31.55% | Stable | 0+ | --- | 1931 |
| 104Ru | 60 | 103.9054 | -88,095.8 | 18.62% | Stable | 0+ | β⁻ | 1931 |
| 101Ru | 57 | 100.9056 | -87,958.1 | 17.06% | Stable | 5/2+ | --- | 1931 |
| 99Ru | 55 | 98.9059 | -87,625.4 | 12.76% | Stable | 5/2+ | --- | 1931 |
| 100Ru | 56 | 99.9042 | -89,227.4 | 12.6% | Stable | 0+ | --- | 1931 |
| 96Ru | 52 | 95.9076 | -86,080.39 | 5.54% | Stable | 0+ | β⁺ | 1931 |
| 98Ru | 54 | 97.9053 | -88,225.0 | 1.87% | Stable | 0+ | --- | 1944 |
| 85Ru | 41 | 84.9671 | -30,630.0 | --- | 1.0 ms | (3/2-) | β⁺→85Tc β⁺p→84Mo p→84Tc | 2013 |
| 86Ru | 42 | 85.9573 | -39,770.0 | --- | 50.0 ms | 0+ | β⁺→86Tc β⁺p→85Mo | 2013 |
| 87Ru | 43 | 86.9509 | -45,730.0 | --- | 50.0 ms | (1/2-) | β⁺→87Tc β⁺p→86Mo | 1995 |
| 88Ru | 44 | 87.9417 | -54,340.0 | --- | 1.5 s | 0+ | β⁺→88Tc(100%) β⁺p→87Mo(<3.6%) | 1994 |
| 89Ru | 45 | 88.9373 | -58,369.0 | --- | 1.32 s | (9/2+) | β⁺→89Tc(96.9%) β⁺p→88Mo(3.1%) | 1992 |
| 90Ru | 46 | 89.9303 | -64,884.0 | --- | 11.7 s | 0+ | β⁺→90Tc(100%) | 1991 |
| 91Ru | 47 | 90.9267 | -68,239.8 | --- | 8.0 s | (9/2+) | β⁺→91Tc(100%) β⁺p→90Mo | 1983 |
| 91mRu | 47 | 90.9264 | -68,580.0 | --- | 7.6 s | (1/2-) | β⁺→91Tc(100%) β⁺p→90Mo γ→91Ru | 1983 |
| 92Ru | 48 | 91.9202 | -74,301.2 | --- | 3.65 m | 0+ | β⁺→92Tc(100%) | 1971 |
| 92mRu | 48 | 91.9233 | -71,467.0 | --- | 100.0 ns | (8+) | γ→92Ru(100%) | 1980 |
| 93Ru | 49 | 92.9171 | -77,216.7 | --- | 59.7 s | (9/2+) | β⁺→93Tc(100%) | 1972 |
| 93mRu | 49 | 92.9179 | -76,482.3 | --- | 10.8 s | (1/2-) | β⁺→93Tc(77.973%) γ→93Ru(22%) β⁺p→92Mo(0.027%) | 1983 |
| 93nRu | 49 | 92.9193 | -75,134.2 | --- | 2.3 µs | (21/2+) | γ→93Ru(100%) | 1983 |
| 94Ru | 50 | 93.9113 | -82,584.0 | --- | 51.8 m | 0+ | β⁺→94Tc(100%) | 1952 |
| 94mRu | 50 | 93.9142 | -79,940.0 | --- | 67.5 µs | 8+ | γ→94Ru(100%) | 1971 |
| 95Ru | 51 | 94.9104 | -83,458.0 | --- | 1.61 h | 5/2+ | β⁺→95Tc(100%) | 1948 |
| 97Ru | 53 | 96.9075 | -86,120.6 | --- | 2.84 d | 5/2+ | β⁺→97Tc(100%) | 1946 |
| 101mRu | 57 | 100.9061 | -87,430.5 | --- | 17.5 µs | 11/2- | γ→101Ru(100%) | 1974 |
| 103Ru | 59 | 102.9063 | -87,267.2 | --- | 39.24 d | 3/2+ | β⁻→103Rh(100%) | 1945 |
| 103mRu | 59 | 102.9066 | -87,029.0 | --- | 1.69 ms | 11/2- | γ→103Ru(100%) | 1964 |
| 105Ru | 61 | 104.9077 | -85,934.5 | --- | 4.44 h | 3/2+ | β⁻→105Rh(100%) | 1945 |
| 105mRu | 61 | 104.9078 | -85,913.9 | --- | 340.0 ns | 5/2+ | γ→105Ru(100%) | 1974 |
| 106Ru | 62 | 105.9073 | -86,323.0 | --- | 1.02 y | 0+ | β⁻→106Rh(100%) | 1948 |
| 107Ru | 63 | 106.91 | -83,863.0 | --- | 3.75 m | (5/2+) | β⁻→107Rh(100%) | 1951 |
| 108Ru | 64 | 107.9102 | -83,661.0 | --- | 4.55 m | 0+ | β⁻→108Rh(100%) | 1955 |
| 109Ru | 65 | 108.9133 | -80,738.0 | --- | 34.4 s | (5/2+) | β⁻→109Rh(100%) | 1967 |
| 109mRu | 65 | 108.9134 | -80,642.0 | --- | 680.0 ns | (5/2-) | γ→109Ru(100%) | 1976 |
| 110Ru | 66 | 109.914 | -80,073.0 | --- | 12.04 s | 0+ | β⁻→110Rh(100%) | 1970 |
| 111Ru | 67 | 110.9176 | -76,785.0 | --- | 2.12 s | 5/2+ | β⁻→111Rh(100%) | 1971 |
| 112Ru | 68 | 111.9188 | -75,631.0 | --- | 1.75 s | 0+ | β⁻→112Rh(100%) | 1970 |
| 113Ru | 69 | 112.9228 | -71,870.0 | --- | 800.0 ms | (1/2+) | β⁻→113Rh(100%) | 1988 |
| 113mRu | 69 | 112.923 | -71,740.0 | --- | 510.0 ms | (7/2-) | β⁻→113Rh γ→113Ru | 1998 |
| 114Ru | 70 | 113.9246 | -70,221.0 | --- | 540.0 ms | 0+ | β⁻→114Rh(100%) β⁻n→113Rh β⁻n→112Rh | 1991 |
| 115Ru | 71 | 114.929 | -66,105.0 | --- | 318.0 ms | (1/2+) | β⁻→115Rh(100%) β⁻n→114Rh | 1992 |
| 115mRu | 71 | 114.929 | -66,110.0 | --- | 76.0 ms | (7/2-) | γ→115Ru β⁻→115Rh | 2010 |
| 116Ru | 72 | 115.9312 | -64,069.0 | --- | 204.0 ms | 0+ | β⁻→116Rh(100%) β⁻n→115Rh | 1994 |
| 117Ru | 73 | 116.9361 | -59,490.0 | --- | 151.0 ms | (3/2+) | β⁻→117Rh(100%) β⁻n→116Rh | 1994 |
| 117mRu | 73 | 116.9363 | -59,310.0 | --- | 2.49 µs | (7/2-) | γ→117Ru(100%) | 2012 |
| 118Ru | 74 | 117.9388 | -57,000.0 | --- | 99.0 ms | 0+ | β⁻→118Rh(100%) β⁻n→117Rh | 1994 |
| 119Ru | 75 | 118.9441 | -52,080.0 | --- | 69.5 ms | (3/2+) | β⁻→119Rh(100%) β⁻n→118Rh β⁻n→117Rh | 1997 |
| 119mRu | 75 | 118.9443 | -51,850.0 | --- | 384.0 ns | --- | γ→119Ru(100%) | 2012 |
| 120Ru | 76 | 119.9466 | -49,720.0 | --- | 45.0 ms | 0+ | β⁻→120Rh(100%) β⁻n→119Rh | 2010 |
| 121Ru | 77 | 120.9521 | -44,620.0 | --- | 29.0 ms | (3/2+) | β⁻→121Rh(100%) β⁻n→120Rh β⁻n→119Rh | 2010 |
| 122Ru | 78 | 121.9551 | -41,780.0 | --- | 25.0 ms | 0+ | β⁻→122Rh(100%) β⁻n→121Rh β⁻n→120Rh | 2010 |
| 123Ru | 79 | 122.9608 | -36,550.0 | --- | 19.0 ms | (3/2+) | β⁻→123Rh(100%) β⁻n→122Rh β⁻n→121Rh | 2010 |
| 124Ru | 80 | 123.9639 | -33,590.0 | --- | 15.0 ms | 0+ | β⁻→124Rh(100%) β⁻n→123Rh β⁻n→122Rh | 2010 |
| 125Ru | 81 | 124.9695 | -28,370.0 | --- | 12.0 ms | (3/2+) | β⁻→125Rh β⁻n→124Rh β⁻n→123Rh | 2018 |