Isotopes of Scandium
List of known isotopes of the element Scandium.
| Isotope | t½ | % | Spin/parity | Radius | Isotopic mass | Discovery |
|---|---|---|---|---|---|---|
| 38Sc | stab. | syn. | — | — | 3.799·107 ±215 keV/c2 | — |
| 39Sc | 300 ns | syn. | (7/2-) | — | 3.898·107 ±25.76 keV/c2 | 1988 |
| 40Sc | 182.3 ±7 ms | syn. | 4- | — | 3.997·107 ±3.036 keV/c2 | 1955 |
| 41Sc | 596.3 ±17 ms | syn. | 7/2- | — | 4.096·107 ±0.083 keV/c2 | 1941 |
| 42Sc | 680.7 ±28 ms | syn. | 0+ | 3.57 ±0.0238 fm | 4.196·107 ±0.165 keV/c2 | 1955 |
| 43Sc | 3.891 ±12 h | syn. | 7/2- | 3.557 ±0.0147 fm | 4.296·107 ±1.999 keV/c2 | 1935 |
| 44Sc | 3.97 ±4 h | syn. | 2+ | 3.543 ±0.0016 fm | 4.395·107 ±1.884 keV/c2 | 1937 |
| 45Sc | stab. | 100 % | 7/2- | 3.545 ±0.0025 fm | 4.495·107 ±0.712 keV/c2 | 1923 |
| 46Sc | 83.79 ±4 d | syn. | 4+ | 3.524 ±0.0089 fm | 4.595·107 ±0.72 keV/c2 | 1936 |
| 47Sc | 3.349 ±6 d | syn. | 7/2- | — | 4.695·107 ±2.072 keV/c2 | 1945 |
| 48Sc | 43.71 ±9 h | syn. | 6+ | — | 4.795·107 ±5.313 keV/c2 | 1937 |
| 49Sc | 57.18 ±13 m | syn. | 7/2- | — | 4.895·107 ±2.434 keV/c2 | 1940 |
| 50Sc | 102.5 ±5 s | syn. | 5+ | — | 4.995·107 ±2.7 keV/c2 | 1959 |
| 51Sc | 12.4 ±1 s | syn. | (7/2)- | — | 5.095·107 ±2.7 keV/c2 | 1966 |
| 52Sc | 8.2 ±2 s | syn. | 3(+) | — | 5.195·107 ±3.3 keV/c2 | 1980 |
| 53Sc | 2.6 ±4 s | syn. | (7/2-) | — | 5.295·107 ±19 keV/c2 | 1980 |
| 54Sc | 526 ±15 ms | syn. | (3)+ | — | 5.396·107 ±15 keV/c2 | 1990 |
| 55Sc | 96 ±2 ms | syn. | (7/2-) | — | 5.496·107 ±67 keV/c2 | 1990 |
| 56Sc | 26 ±6 ms | syn. | (1+) | — | 5.597·107 ±278.7 keV/c2 | 1997 |
| 57Sc | 13 ±4 ms | syn. | — | — | 5.697·107 ±193 keV/c2 | 1997 |
| 58Sc | 12 ±5 ms | syn. | — | — | 5.798·107 ±204 keV/c2 | 1997 |
| 59Sc | stab. | syn. | — | — | 5.898·107 ±268 keV/c2 | 2009 |
| 61Sc | stab. | syn. | — | — | 6.1·107 ±644 keV/c2 | 2009 |
38ScScandium-38
| Classification | z: 21; n: 17; m: 38 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Mass excess | -4,249 ±200 keV |
| Binding energy | 7,751 ±5 keV |
| Single-particle energy | -1,598 ±200 keV |
| Neutron separation energy | 16,100 ±361 keV |
| Q value for electron capture | 17,800 ±200 keV |
| β⁻ decay energy | -15,620 ±361 keV |
| β⁻ decay energy with neutron | -37,500 ±447 keV |
39ScScandium-39
| Classification | z: 21; n: 18; m: 39 |
|---|---|
| Half life | 300 ns |
| Natural abundance | synthetic nuclide |
| Spin/parity | (7/2-) |
| Decay modes | proton emission |
| Discovery | 1988 |
| Mass excess | -14,180 ±24 keV |
| Binding energy | 8,013 ±0.6154 keV |
| Single-particle energy | -596.9 ±24 keV |
| Neutron separation energy | 17,990 ±202 keV |
| Q value for electron capture | 13,100 ±24 keV |
| β⁻ decay energy | -16,680 ±202 keV |
| β⁻ decay energy with neutron | -33,620 ±301 keV |
40ScScandium-40
| Classification | z: 21; n: 19; m: 40 |
|---|---|
| Half life | 182.3 ±7 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 4- |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission; electron capture + α decay |
| Discovery | 1955 |
| Mass excess | -20,530 ±2.828 keV |
| Binding energy | 8,173 ±0.0707 keV |
| Single-particle energy | 529.6 ±2.89 keV |
| Neutron separation energy | 14,420 ±24.16 keV |
| Q value for electron capture | 14,320 ±2.828 keV |
| β⁻ decay energy | -11,530 ±68.3 keV |
| β⁻ decay energy with neutron | -31,100 ±200 keV |
41ScScandium-41
| Classification | z: 21; n: 20; m: 41 |
|---|---|
| Half life | 596.3 ±17 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 7/2- |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1941 |
| Mass excess | -28,650 ±0.077 keV |
| Binding energy | 8,369 ±0.0019 keV |
| Single-particle energy | 1,084 ±0.0746 keV |
| Neutron separation energy | 16,190 ±2.829 keV |
| Q value for electron capture | 6,495 ±0.158 keV |
| β⁻ decay energy | -12,950 ±27.94 keV |
| β⁻ decay energy with neutron | -27,730 ±68.24 keV |
| Magnetic dipole moment | 5.428 ±0.0014 μN |
| Electric quadrupole moment | -0.145 ±0.003 b |
42ScScandium-42
| Classification | z: 21; n: 21; m: 42 |
|---|---|
| Half life | 680.7 ±28 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1955 |
| Mass excess | -32,130 ±0.154 keV |
| Binding energy | 8,444 ±0.0037 keV |
| Single-particle energy | 4,272 ±0.0687 keV |
| Neutron separation energy | 11,540 ±0.1579 keV |
| Q value for electron capture | 6,426 ±0.21 keV |
| β⁻ decay energy | -7,017 ±0.2239 keV |
| β⁻ decay energy with neutron | -24,500 ±27.94 keV |
43ScScandium-43
| Classification | z: 21; n: 22; m: 43 |
|---|---|
| Half life | 3.891 ±12 h |
| Natural abundance | synthetic nuclide |
| Spin/parity | 7/2- |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1935 |
| Mass excess | -36,190 ±1.863 keV |
| Binding energy | 8,530 ±0.0433 keV |
| Single-particle energy | 4,929 ±1.857 keV |
| Neutron separation energy | 12,130 ±1.857 keV |
| Q value for electron capture | 2,220 ±1.877 keV |
| β⁻ decay energy | -6,873 ±6.014 keV |
| β⁻ decay energy with neutron | -19,160 ±1.87 keV |
| Magnetic dipole moment | 4.526 ±0.01 μN |
| Electric quadrupole moment | -0.27 ±0.05 b |
44ScScandium-44
| Classification | z: 21; n: 23; m: 44 |
|---|---|
| Half life | 3.97 ±4 h |
| Natural abundance | synthetic nuclide |
| Spin/parity | 2+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1937 |
| Mass excess | -37,820 ±1.756 keV |
| Binding energy | 8,557 ±0.0399 keV |
| Single-particle energy | 6,696 ±1.74 keV |
| Neutron separation energy | 9,699 ±2.551 keV |
| Q value for electron capture | 3,652 ±1.786 keV |
| β⁻ decay energy | -267.5 ±1.889 keV |
| β⁻ decay energy with neutron | -16,580 ±5.982 keV |
| Magnetic dipole moment | 2.498 ±0.005 μN |
| Electric quadrupole moment | 0.1 ±0.05 b |
45ScScandium-45
| Classification | z: 21; n: 24; m: 45 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 100 % |
| Spin/parity | 7/2- |
| Discovery | 1923 |
| Mass excess | -41,080 ±0.663 keV |
| Binding energy | 8,618 ±0.0147 keV |
| Single-particle energy | 6,892 ±0.7228 keV |
| Neutron separation energy | 11,320 ±1.873 keV |
| Q value for electron capture | -260.1 ±0.757 keV |
| β⁻ decay energy | -2,063 ±0.5086 keV |
| β⁻ decay energy with neutron | -11,600 ±0.9646 keV |
| Magnetic dipole moment | 4.754 ±8·10-5 μN |
| Electric quadrupole moment | -0.22 ±0.002 b |
46ScScandium-46
| Classification | z: 21; n: 25; m: 46 |
|---|---|
| Half life | 83.79 ±4 d |
| Natural abundance | synthetic nuclide |
| Spin/parity | 4+ |
| Decay modes | β⁻ decay |
| Discovery | 1936 |
| Mass excess | -41,770 ±0.671 keV |
| Binding energy | 8,622 ±0.0146 keV |
| Single-particle energy | 8,238 ±0.745 keV |
| Neutron separation energy | 8,760 ±0.1037 keV |
| Q value for electron capture | 1,377 ±2.333 keV |
| β⁻ decay energy | 2,366 ±0.6666 keV |
| β⁻ decay energy with neutron | -10,830 ±0.5191 keV |
| Magnetic dipole moment | 3.04 ±0.008 μN |
| Electric quadrupole moment | 0.119 ±0.006 b |
47ScScandium-47
| Classification | z: 21; n: 26; m: 47 |
|---|---|
| Half life | 3.349 ±6 d |
| Natural abundance | synthetic nuclide |
| Spin/parity | 7/2- |
| Decay modes | β⁻ decay |
| Discovery | 1945 |
| Mass excess | -44,340 ±1.931 keV |
| Binding energy | 8,665 ±0.0411 keV |
| Single-particle energy | 8,486 ±1.213 keV |
| Neutron separation energy | 10,640 ±2.041 keV |
| Q value for electron capture | -1,993 ±2.943 keV |
| β⁻ decay energy | 600.7 ±1.929 keV |
| β⁻ decay energy with neutron | -8,280 ±1.93 keV |
| Magnetic dipole moment | 5.34 ±0.02 μN |
| Electric quadrupole moment | -0.22 ±0.03 b |
48ScScandium-48
| Classification | z: 21; n: 27; m: 48 |
|---|---|
| Half life | 43.71 ±9 h |
| Natural abundance | synthetic nuclide |
| Spin/parity | 6+ |
| Decay modes | β⁻ decay |
| Discovery | 1937 |
| Mass excess | -44,510 ±4.95 keV |
| Binding energy | 8,656 ±0.1031 keV |
| Single-particle energy | 9,448 ±5.424 keV |
| Neutron separation energy | 8,238 ±5.312 keV |
| Q value for electron capture | -279.3 ±4.95 keV |
| β⁻ decay energy | 3,988 ±4.949 keV |
| β⁻ decay energy with neutron | -7,638 ±4.95 keV |
| Magnetic dipole moment | 3.737 ±0.012 μN |
49ScScandium-49
| Classification | z: 21; n: 28; m: 49 |
|---|---|
| Half life | 57.18 ±13 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 7/2- |
| Decay modes | β⁻ decay |
| Discovery | 1940 |
| Mass excess | -46,570 ±2.268 keV |
| Binding energy | 8,686 ±0.0463 keV |
| Single-particle energy | 9,626 ±2.267 keV |
| Neutron separation energy | 10,120 ±5.444 keV |
| Q value for electron capture | -5,263 ±2.275 keV |
| β⁻ decay energy | 2,001 ±2.268 keV |
| β⁻ decay energy with neutron | -6,141 ±2.268 keV |
| Magnetic dipole moment | 5.61 ±0.03 μN |
50ScScandium-50
| Classification | z: 21; n: 29; m: 50 |
|---|---|
| Half life | 102.5 ±5 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 5+ |
| Decay modes | β⁻ decay |
| Discovery | 1959 |
| Mass excess | -44,540 ±2.515 keV |
| Binding energy | 8,633 ±0.0503 keV |
| Single-particle energy | 10,520 ±2.521 keV |
| Neutron separation energy | 6,045 ±3.386 keV |
| Q value for electron capture | -4,948 ±2.97 keV |
| β⁻ decay energy | 6,894 ±2.516 keV |
| β⁻ decay energy with neutron | -4,045 ±2.516 keV |
51ScScandium-51
| Classification | z: 21; n: 30; m: 51 |
|---|---|
| Half life | 12.4 ±1 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (7/2)- |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1966 |
| Mass excess | -43,260 ±2.515 keV |
| Binding energy | 8,597 ±0.0493 keV |
| Single-particle energy | 10,950 ±2.972 keV |
| Neutron separation energy | 6,784 ±3.557 keV |
| Q value for electron capture | -6,919 ±2.569 keV |
| β⁻ decay energy | 6,482 ±2.561 keV |
| β⁻ decay energy with neutron | 110.1 ±2.516 keV |
52ScScandium-52
| Classification | z: 21; n: 31; m: 52 |
|---|---|
| Half life | 8.2 ±2 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 3(+) |
| Decay modes | β⁻ decay |
| Discovery | 1980 |
| Mass excess | -40,530 ±3.074 keV |
| Binding energy | 8,534 ±0.0591 keV |
| Single-particle energy | 11,480 ±3.117 keV |
| Neutron separation energy | 5,344 ±3.971 keV |
| Q value for electron capture | -6,258 ±3.146 keV |
| β⁻ decay energy | 8,954 ±4.122 keV |
| β⁻ decay energy with neutron | 1,138 ±3.111 keV |
53ScScandium-53
| Classification | z: 21; n: 32; m: 53 |
|---|---|
| Half life | 2.6 ±4 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (7/2-) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1980 |
| Mass excess | -38,770 ±17.69 keV |
| Binding energy | 8,492 ±0.3339 keV |
| Single-particle energy | 11,790 ±17.71 keV |
| Neutron separation energy | 6,317 ±17.96 keV |
| Q value for electron capture | -9,382 ±47.22 keV |
| β⁻ decay energy | 8,111 ±17.93 keV |
| β⁻ decay energy with neutron | 2,636 ±17.91 keV |
54ScScandium-54
| Classification | z: 21; n: 33; m: 54 |
|---|---|
| Half life | 526 ±15 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (3)+ |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1990 |
| Mass excess | -34,440 ±13.97 keV |
| Binding energy | 8,404 ±0.2588 keV |
| Single-particle energy | 12,330 ±45.95 keV |
| Neutron separation energy | 3,739 ±22.54 keV |
| Q value for electron capture | -9,278 ±50.41 keV |
| β⁻ decay energy | 11,300 ±21.11 keV |
| β⁻ decay energy with neutron | 4,372 ±14.26 keV |
55ScScandium-55
| Classification | z: 21; n: 34; m: 55 |
|---|---|
| Half life | 96 ±2 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (7/2-) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1990 |
| Mass excess | -30,850 ±62.41 keV |
| Binding energy | 8,333 ±1.134 keV |
| Single-particle energy | 12,970 ±79 keV |
| Neutron separation energy | 4,475 ±63.95 keV |
| Q value for electron capture | -12,200 ±171.9 keV |
| β⁻ decay energy | 10,990 ±68.76 keV |
| β⁻ decay energy with neutron | 6,830 ±64.38 keV |
56ScScandium-56
| Classification | z: 21; n: 35; m: 56 |
|---|---|
| Half life | 26 ±6 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (1+) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission |
| Discovery | 1997 |
| Mass excess | -25,520 ±259.6 keV |
| Binding energy | 8,233 ±4.636 keV |
| Single-particle energy | 14,150 ±305.1 keV |
| Neutron separation energy | 2,745 ±267 keV |
| Q value for electron capture | -12,010 ±360.2 keV |
| β⁻ decay energy | 13,900 ±278.3 keV |
| β⁻ decay energy with neutron | 8,245 ±261.2 keV |
57ScScandium-57
| Classification | z: 21; n: 36; m: 57 |
|---|---|
| Half life | 13 ±4 ms |
| Natural abundance | synthetic nuclide |
| Decay modes | β⁻ decay; β⁻ decay with two-neutron emission; β⁻ decay with neutron emission |
| Discovery | 1997 |
| Mass excess | -21,380 ±179.7 keV |
| Binding energy | 8,158 ±3.154 keV |
| Single-particle energy | 15,150 ±307.6 keV |
| Neutron separation energy | 3,935 ±315.8 keV |
| Q value for electron capture | -14,820 ±438.5 keV |
| β⁻ decay energy | 13,020 ±273.3 keV |
| β⁻ decay energy with neutron | 9,972 ±205.8 keV |
58ScScandium-58
| Classification | z: 21; n: 37; m: 58 |
|---|---|
| Half life | 12 ±5 ms |
| Natural abundance | synthetic nuclide |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1997 |
| Mass excess | -15,480 ±190 keV |
| Binding energy | 8,054 ±3.276 keV |
| Single-particle energy | 16,200 ±442 keV |
| Neutron separation energy | 2,171 ±261.5 keV |
| Q value for electron capture | -13,950 ±534.8 keV |
| β⁻ decay energy | 15,430 ±264 keV |
| β⁻ decay energy with neutron | 10,850 ±280.1 keV |
59ScScandium-59
| Classification | z: 21; n: 38; m: 59 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Discovery | 2009 |
| Mass excess | -10,830 ±249.6 keV |
| Binding energy | 7,976 ±4.231 keV |
| Single-particle energy | 16,580 ±559 keV |
| Neutron separation energy | 3,421 ±313.7 keV |
| β⁻ decay energy | 15,050 ±390 keV |
| β⁻ decay energy with neutron | 12,010 ±309.7 keV |
61ScScandium-61
| Classification | z: 21; n: 40; m: 61 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Discovery | 2009 |
| Mass excess | 500 ±600 keV |
| Binding energy | 7,794 ±10 keV |
| Single-particle energy | 17,780 ±922 keV |
| Neutron separation energy | 3,021 ±781 keV |
| β⁻ decay energy | 16,870 ±671 keV |
| β⁻ decay energy with neutron | 14,520 ±646 keV |