Nb
Niobium
Z 41 92.906 g/molTransition Metal
| 93Nb | 52 | 92.9064 | -87,212.8 | 100.0% | Stable | 9/2+ | --- | 1932 |
| 79Nb | 38 | 78.966 | -31,650.0 | --- | --- | (9/2+) | p→78Zr β⁺→79Zr β⁺p→78Y | --- |
| 80Nb | 39 | 79.9588 | -38,420.0 | --- | --- | (4-) | p→79Zr β⁺→80Zr β⁺p→79Y | --- |
| 81Nb | 40 | 80.9502 | -46,360.0 | --- | --- | (9/2+) | p→80Zr β⁺→81Zr β⁺p→80Y | --- |
| 82Nb | 41 | 81.9444 | -51,810.0 | --- | 51.0 ms | (0+) | β⁺→82Zr(100%) β⁺p→81Y | 1992 |
| 82mNb | 41 | 81.9456 | -50,630.0 | --- | 93.0 ns | (5+) | γ→82Nb(100%) | 2008 |
| 83Nb | 42 | 82.9382 | -57,610.0 | --- | 3.9 s | (9/2+) | β⁺→83Zr(100%) | 1988 |
| 84Nb | 43 | 83.9343 | -61,193.8 | --- | 9.8 s | (1+) | β⁺→84Zr(100%) | 1977 |
| 84mNb | 43 | 83.9344 | -61,145.8 | --- | 176.0 ns | (3+) | γ→84Nb(100%) | 2009 |
| 84nNb | 43 | 83.9347 | -60,856.1 | --- | 92.0 ns | (5-) | γ→84Nb(100%) | 2000 |
| 85Nb | 44 | 84.9288 | -66,280.0 | --- | 20.5 s | (9/2+) | β⁺→85Zr(100%) | 1988 |
| 85mNb | 44 | 84.929 | -66,130.0 | --- | 3.3 s | (1/2-) | γ→85Nb β⁺→85Zr | 1988 |
| 85nNb | 44 | 85.0 | 0.0 | --- | 12.0 s | --- | β⁻→85Mo γ→85Nb | --- |
| 86Nb | 45 | 85.9258 | -69,134.0 | --- | 1.47 m | (6+) | β⁺→86Zr(100%) | 1974 |
| 86mNb | 45 | 85.9259 | -68,980.0 | --- | 20.0 s | (0-) | β⁺→86Zr(100%) γ→86Nb | 1994 |
| 86nNb | 45 | 86.0 | 0.0 | --- | 56.3 s | --- | β⁺→86Zr γ→86Nb | --- |
| 87Nb | 46 | 86.9207 | -73,874.0 | --- | 3.7 m | (1/2-) | β⁺→87Zr(100%) | 1971 |
| 87mNb | 46 | 86.9207 | -73,870.0 | --- | 2.6 m | (9/2+) | β⁺→87Zr(100%) | 1972 |
| 88Nb | 47 | 87.9182 | -76,170.0 | --- | 14.5 m | (8+) | β⁺→88Zr(100%) | 1964 |
| 88mNb | 47 | 87.9184 | -76,040.0 | --- | 7.7 m | (4-) | β⁺→88Zr(100%) | 1971 |
| 89Nb | 48 | 88.9134 | -80,626.0 | --- | 2.03 h | (9/2+) | β⁺→89Zr(100%) | 1954 |
| 89mNb | 48 | 88.9134 | -80,630.0 | --- | 1.1 h | (1/2-) | β⁺→89Zr(100%) | 1954 |
| 90Nb | 49 | 89.9113 | -82,662.0 | --- | 14.6 h | 8+ | β⁺→90Zr(100%) | 1951 |
| 90mNb | 49 | 89.9114 | -82,540.0 | --- | 63.0 µs | 6+ | γ→90Nb(100%) | 1967 |
| 90nNb | 49 | 89.9114 | -82,537.0 | --- | 18.81 s | 4- | γ→90Nb(100%) | 1969 |
| 91Nb | 50 | 90.907 | -86,638.0 | --- | 680.0 y | 9/2+ | EC→91Zr(~100%) β⁺(0.014%) | 1951 |
| 91mNb | 50 | 90.9071 | -86,533.4 | --- | 60.86 d | 1/2- | γ→91Nb(96.6%) EC→91Zr(3.4%) β⁺(0.003%) | 1950 |
| 91nNb | 50 | 90.9092 | -84,603.6 | --- | 3.76 µs | (17/2-) | γ→91Nb(100%) | 1974 |
| 92Nb | 51 | 91.9072 | -86,453.3 | --- | 34.7 My | 7+ | β⁺→92Zr(100%) | 1938 |
| 92mNb | 51 | 91.9073 | -86,317.8 | --- | 10.12 d | (2+) | β⁺→92Zr(100%) | 1959 |
| 92nNb | 51 | 91.9074 | -86,227.5 | --- | 5.9 µs | (2-) | γ→92Nb(100%) | 1958 |
| 93mNb | 52 | 92.9064 | -87,182.0 | --- | 16.12 y | 1/2- | γ→93Nb(100%) | 1965 |
| 93nNb | 52 | 92.9144 | -79,753.0 | --- | 1.5 µs | (33/2-) | γ→93Nb(100%) | 2007 |
| 94Nb | 53 | 93.9073 | -86,369.1 | --- | 20.4 ky | 6+ | β⁻→94Mo(100%) | 1938 |
| 94mNb | 53 | 93.9073 | -86,328.2 | --- | 6.26 m | 3+ | γ→94Nb(99.5%) β⁻→94Mo(0.5%) | 1962 |
| 95Nb | 54 | 94.9068 | -86,786.3 | --- | 34.99 d | 9/2+ | β⁻→95Mo(100%) | 1951 |
| 95mNb | 54 | 94.9071 | -86,550.6 | --- | 3.61 d | 1/2- | γ→95Nb(94.4%) β⁻→95Mo(5.6%) | 1969 |
| 96Nb | 55 | 95.9081 | -85,602.83 | --- | 23.35 h | 6+ | β⁻→96Mo(100%) | 1949 |
| 97Nb | 56 | 96.9081 | -85,603.0 | --- | 1.2 h | 9/2+ | β⁻→97Mo(100%) | 1951 |
| 97mNb | 56 | 96.9089 | -84,860.0 | --- | 58.7 s | 1/2- | γ→97Nb(100%) | 1950 |
| 98Nb | 57 | 97.9103 | -83,525.0 | --- | 2.86 s | 1+ | β⁻→98Mo(100%) | 1960 |
| 98mNb | 57 | 97.9104 | -83,441.0 | --- | 51.1 m | (5+) | β⁻→98Mo(100%) γ→98Nb | 1948 |
| 99Nb | 58 | 98.9116 | -82,335.0 | --- | 15.0 s | 9/2+ | β⁻→99Mo(100%) | 1950 |
| 99mNb | 58 | 98.912 | -81,970.0 | --- | 2.5 m | 1/2- | β⁻→99Mo(100%) γ→99Nb | 1960 |
| 100Nb | 59 | 99.9143 | -79,791.0 | --- | 1.5 s | 1+ | β⁻→100Mo(100%) | 1967 |
| 100mNb | 59 | 99.9147 | -79,478.5 | --- | 2.99 s | (5+) | β⁻→100Mo(100%) | 1967 |
| 100nNb | 59 | 99.9147 | -79,444.0 | --- | 460.0 ns | (4-) | γ→100Nb(100%) | 1986 |
| 101Nb | 60 | 100.9153 | -78,891.0 | --- | 7.1 s | 5/2+ | β⁻→101Mo(100%) | 1970 |
| 102Nb | 61 | 101.9181 | -76,298.3 | --- | 4.3 s | (4+) | β⁻→102Mo(100%) | 1972 |
| 102mNb | 61 | 101.9182 | -76,204.0 | --- | 1.31 s | (1+) | β⁻→102Mo(100%) γ→102Nb | 1976 |
| 103Nb | 62 | 102.9195 | -75,029.0 | --- | 1.34 s | 5/2+ | β⁻→103Mo(100%) β⁻n→102Mo | 1971 |
| 104Nb | 63 | 103.9229 | -71,811.0 | --- | 980.0 ms | (5-) | β⁻→104Mo(99.95%) β⁻n→103Mo(0.05%) | 1976 |
| 104mNb | 63 | 103.9229 | -71,801.2 | --- | 4.9 s | (0-) | β⁻→104Mo(99.94%) β⁻n→103Mo(0.06%) | 1971 |
| 105Nb | 64 | 104.9249 | -69,916.0 | --- | 2.91 s | (5/2+) | β⁻→105Mo(98.3%) β⁻n→104Mo(1.7%) | 1984 |
| 106Nb | 65 | 105.9289 | -66,202.7 | --- | 900.0 ms | (1-) | β⁻→106Mo(95.5%) β⁻n→105Mo(4.5%) | 1976 |
| 106mNb | 65 | 105.929 | -66,100.0 | --- | 1.2 s | (4-) | β⁻→106Mo(100%) γ→106Nb | 1976 |
| 106nNb | 65 | 105.9291 | -65,997.9 | --- | 820.0 ns | (3+) | γ→106Nb(100%) | 1999 |
| 107Nb | 66 | 106.9316 | -63,724.0 | --- | 286.0 ms | (5/2+) | β⁻→107Mo(92.6%) β⁻n→106Mo(7.4%) | 1992 |
| 108Nb | 67 | 107.9361 | -59,545.0 | --- | 201.0 ms | (2+) | β⁻→108Mo(93.7%) β⁻n→107Mo(6.3%) β⁻n→106Mo | 1994 |
| 108mNb | 67 | 107.9363 | -59,378.0 | --- | 109.0 ns | (6-) | γ→108Nb(100%) | 2012 |
| 109Nb | 68 | 108.9391 | -56,690.0 | --- | 106.9 ms | (3/2-) | β⁻→109Mo(69%) β⁻n→108Mo(31%) | 1994 |
| 109mNb | 68 | 108.9395 | -56,380.0 | --- | 115.0 ns | (7/2+) | γ→109Nb(100%) | 2011 |
| 110Nb | 69 | 109.9438 | -52,310.0 | --- | 75.0 ms | (5+) | β⁻→110Mo(60%) β⁻n→109Mo(40%) β⁻n→108Mo | 1994 |
| 110mNb | 69 | 109.944 | -52,210.0 | --- | 94.0 ms | (2+) | β⁻→110Mo(60%) β⁻n→109Mo(40%) γ→110Nb β⁻n→108Mo | 2020 |
| 111Nb | 70 | 110.9474 | -48,960.0 | --- | 54.0 ms | (3/2-) | β⁻→111Mo(100%) β⁻n→110Mo β⁻n→109Mo | 1997 |
| 112Nb | 71 | 111.9527 | -44,070.0 | --- | 38.0 ms | (1+) | β⁻→112Mo(100%) β⁻n→111Mo β⁻n→110Mo | 1997 |
| 113Nb | 72 | 112.9568 | -40,210.0 | --- | 32.0 ms | (3/2-) | β⁻→113Mo(100%) β⁻n→112Mo β⁻n→111Mo | 1997 |
| 114Nb | 73 | 113.9625 | -34,960.0 | --- | 17.0 ms | (2-) | β⁻→114Mo(100%) β⁻n→113Mo β⁻n→112Mo | 2010 |
| 115Nb | 74 | 114.9668 | -30,880.0 | --- | 23.0 ms | (3/2-) | β⁻→115Mo(100%) β⁻n→114Mo β⁻n→113Mo | 2010 |
| 116Nb | 75 | 115.9729 | -25,230.0 | --- | 12.0 ms | (1-) | β⁻→116Mo β⁻n→115Mo β⁻n→114Mo | 2018 |