Scandium-63 is a radioisotope of the chemical element scandium, which has 42 neutrons in its atomic nucleus in addition to the element-specific 21 protons; the sum of the number of these atomic nucleus building blocks results in a mass number of 63. The very short-lived, only artificially produced, unstable and thus radioactive nuclide has no practical significance; the study of 63Sc is exclusively for academic purposes.
The discovery or first observation of the neutron-rich Sc nuclide was first reported in 2025; accordingly, scandium-63 was produced, separated, and identified by irradiating a carbon template with selenium-82 ions at an energy of 228 MeV/u [1].
See also: List of individual Scandium isotopes (and general data sources).
| Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
|---|---|---|---|---|
| β-, xn | ? |
| Z | Isotone N = 42 | Isobar A = 63 |
|---|---|---|
| 21 | 63Sc | 63Sc |
| 22 | 64Ti | 63Ti |
| 23 | 65V | 63V |
| 24 | 66Cr | 63Cr |
| 25 | 67Mn | 63Mn |
| 26 | 68Fe | 63Fe |
| 27 | 69Co | 63Co |
| 28 | 70Ni | 63Ni |
| 29 | 71Cu | 63Cu |
| 30 | 72Zn | 63Zn |
| 31 | 73Ga | 63Ga |
| 32 | 74Ge | 63Ge |
| 33 | 75As | 63As |
| 34 | 76Se | 63Se |
| 35 | 77Br | |
| 36 | 78Kr | |
| 37 | 79Rb | |
| 38 | 80Sr | |
| 39 | 81Y | |
| 40 | 82Zr | |
| 41 | 83Nb | |
| 42 | 84Mo | |
| 43 | 85Tc | |
| 44 | 86Ru |
[1] - O. B. Tarasov, B. M. Sherrill, A. C. Dombos et al.:
Discovery of new isotopes in the fragmentation of 82Se and insights into their production.
In: Physical Review C, 112, 034604, (2025), DOI 10.1103/573p-7fjp.
Last update: 2025-10-21
Perma link: https://www.chemlin.org/isotope/scandium-63
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