# Isotopen van scandium

Het chemisch element scandium (Sc), met een atoommassa van 44,955912(6) u, bezit 1 stabiele isotoop: $^{45}$Sc. De overige 24 radio-isotopen zijn onstabiel en hebben een relatief korte halveringstijd (de meeste minder dan een seconde).
De kortstlevende isotopen van scandium zijn $^{38}$Sc en $^{39}$Sc, beide met een halfwaardetijd van minder dan 300 nanoseconden. De langstlevende is $^{46}$Sc, met een halfwaardetijd van bijna 84 dagen.

## Overzicht

| Nuclide | Z (p) | N (n) | Isotopische massa (u) | Halveringstijd | Radioactief verval | VP | Kernspin | Isotopische verhouding (molfractie) |
| Natuurlijk voorkomen (molfractie) |||
| $^{36}$Sc | 21 | 15 | 36,01492(54) | | p | $^{35}$Ca | | |
| $^{37}$Sc | 21 | 16 | 37,00305(32) | | p | $^{36}$Ca | 7/2$^−$ | |
| $^{38}$Sc | 21 | 17 | 37,99470(32) | < 300 ns | p | $^{37}$Ca | (2$^−$) | |
| $^{38m}$Sc | | | | | p | $^{37}$Ca | | |
| $^{39}$Sc | 21 | 18 | 38,984790(26) | < 300 ns | p | $^{38}$Ca | (7/2$^−$) | |
| $^{40}$Sc | 21 | 19 | 39,977967(3) | 182,3(7) ms | β$^+$ (99,54%) | $^{40}$Ca | 4$^−$ | |
| $^{40}$Sc | 21 | 19 | 39,977967(3) | 182,3(7) ms | β$^+$, p (0,44%) | $^{39}$K | 4$^−$ | |
| $^{40}$Sc | 21 | 19 | 39,977967(3) | 182,3(7) ms | β$^+$, α (0,017%) | $^{36}$Ar | 4$^−$ | |
| $^{41}$Sc | 21 | 20 | 40,96925113(24) | 596,3(17) ms | β$^+$ | $^{41}$Ca | 7/2$^−$ | |
| $^{42}$Sc | 21 | 21 | 41,96551643(29) | 681,3(7) ms | β$^+$ | $^{42}$Ca | 0$^+$ | |
| $^{42m}$Sc | 616,28(6) keV | 616,28(6) keV | 616,28(6) keV | 61,7(4) s | β$^+$ | $^{42}$Ca | (7, 5, 6)$^+$ | |
| $^{43}$Sc | 21 | 22 | 42,9611507(20) | 3,891(12) uur | β$^+$ | $^{43}$Ca | 7/2$^−$ | |
| $^{43m1}$Sc | 151,4(2) keV | 151,4(2) keV | 151,4(2) keV | 438(7) µs | | | 3/2$^+$ | |
| $^{43m2}$Sc | 3123,2(3) keV | 3123,2(3) keV | 3123,2(3) keV | 470(4) ns | | | 19/2$^−$ | |
| $^{44}$Sc | 21 | 23 | 43,9594028(19) | 3,97(4) uur | β$^+$ | $^{44}$Ca | 2$^+$ | |
| $^{44m1}$Sc | 67,8680(14) keV | 67,8680(14) keV | 67,8680(14) keV | 154,2(8) ns | | | 1$^−$ | |
| $^{44m2}$Sc | 270,95(20) keV | 270,95(20) keV | 270,95(20) keV | 58,61(10) uur | IT (98,8%) | $^{44}$Sc | 6$^+$ | |
| $^{44m2}$Sc | 270,95(20) keV | 270,95(20) keV | 270,95(20) keV | 58,61(10) uur | β$^+$ (1,2%) | $^{44}$Ca | 6$^+$ | |
| $^{44m3}$Sc | 146,224(22) keV | 146,224(22) keV | 146,224(22) keV | 50,4(7) µs | | | 0$^−$ | |
| $^{45}$Sc | 21 | 24 | 44,9559119(9) | stabiel | stabiel | stabiel | 7/2$^−$ | 1,0000 |
| $^{45m}$Sc | 12,40(5) keV | 12,40(5) keV | 12,40(5) keV | 318(7) ms | IT | $^{45}$Sc | 3/2$^+$ | |
| $^{46}$Sc | 21 | 25 | 45,9551719(9) | 83,79(4) dagen | β$^−$ | $^{46}$Ti | 4$^+$ | |
| $^{46m1}$Sc | 52,011(1) keV | 52,011(1) keV | 52,011(1) keV | 9,4(8) µs | | | 6$^+$ | |
| $^{46m2}$Sc | 142,528(7) keV | 142,528(7) keV | 142,528(7) keV | 18,75(4) s | IT | $^{46}$Sc | 1$^−$ | |
| $^{47}$Sc | 21 | 26 | 46,9524075(22) | 3,3492(6) dagen | β$^−$ | $^{47}$Ti | 7/2$^−$ | |
| $^{47m}$Sc | 766,83(9) keV | 766,83(9) keV | 766,83(9) keV | 272(8) ns | | | 3/2$^+$ | |
| $^{48}$Sc | 21 | 27 | 47,952231(6) | 43,67(9) uur | β$^−$ | $^{48}$Ti | 6$^+$ | |
| $^{49}$Sc | 21 | 28 | 48,950024(4) | 57,2(2) min | β$^−$ | $^{49}$Ti | 7/2$^−$ | |
| $^{50}$Sc | 21 | 29 | 49,952188(17) | 102,5(5) s | β$^−$ | $^{50}$Ti | 5$^+$ | |
| $^{50m}$Sc | 256,895(10) keV | 256,895(10) keV | 256,895(10) keV | 350(40) ms | IT (97,5%) | $^{50}$Sc | 2$^+$,3$^+$ | |
| $^{50m}$Sc | 256,895(10) keV | 256,895(10) keV | 256,895(10) keV | 350(40) ms | β$^−$ (2,5%) | $^{50}$Ti | 2$^+$,3$^+$ | |
| $^{51}$Sc | 21 | 30 | 50,953603(22) | 12,4(1) s | β$^−$ | $^{51}$Ti | 7/2$^−$ | |
| $^{52}$Sc | 21 | 31 | 51,95668(21) | 8,2(2) s | β$^−$ | $^{52}$Ti | 3$^+$ | |
| $^{53}$Sc | 21 | 32 | 52,95961(32) | > 3 s | β$^−$ (> 99,9%) | $^{53}$Ti | (7/2$^−$) | |
| $^{53}$Sc | 21 | 32 | 52,95961(32) | > 3 s | β$^−$, n (< 0,1%) | $^{52}$Ti | (7/2$^−$) | |
| $^{54}$Sc | 21 | 33 | 53,96326(40) | 260(30) ms | β$^−$ (> 99,9%) | $^{54}$Ti | 3$^+$ | |
| $^{54}$Sc | 21 | 33 | 53,96326(40) | 260(30) ms | β$^−$, n (< 0,1%) | $^{53}$Ti | 3$^+$ | |
| $^{54m}$Sc | 110(3) keV | 110(3) keV | 110(3) keV | 7(5) µs | | | (5$^+$) | |
| $^{55}$Sc | 21 | 34 | 54,96824(79) | 0,115(15) s | β$^−$ (> 99,9%) | $^{55}$Ti | 7/2$^−$ | |
| $^{55}$Sc | 21 | 34 | 54,96824(79) | 0,115(15) s | β$^−$, n (< 0,1%) | $^{54}$Ti | 7/2$^−$ | |
| $^{56}$Sc | 21 | 35 | 55,97287(75) | 35(5) ms | β$^−$ | $^{56}$Ti | (1$^+$) | |
| $^{57}$Sc | 21 | 36 | 56,97779(75) | 13(4) ms | β$^−$ | $^{57}$Ti | 7/2$^−$ | |
| $^{58}$Sc | 21 | 37 | 57,98371(86) | 12(5) ms | β$^−$ | $^{58}$Ti | (3$^+$) | |
| $^{59}$Sc | 21 | 38 | 58,98922(97) | 10 ms | β$^−$, n | $^{58}$Ti | 7/2$^−$ | |
| $^{59}$Sc | 21 | 38 | 58,98922(97) | 10 ms | β$^−$ | $^{59}$Ti | 7/2$^−$ | |
| $^{60}$Sc | 21 | 39 | 59,99571(97) | 3 ms | | | 3$^+$ | |

## Overzicht van isotopen per element

* (en) R.B. Firestone, S.Y. Frank Chu & C.M. Baglin (1999) - Table of Isotopes (online versie van de cd-rom)
* (en) G. Audi, A.H. Wapstra, C. Thibault, J. Blachot & O. Bersillon (2003) - The NUBASE evaluation of nuclear and decay properties, Nuclear Physics A, 729, pp. 3-128
* (en) J.R. de Laeter, J.K. Böhlke, P. De Bièvre, H. Hidaka, H.S. Peiser, K.J.R. Rosman & P.D.P. Taylor (2003) - Atomic weights of the elements. Review 2000 (IUPAC Technical Report), Pure and Applied Chemistry, 75 (6), pp. 683–800
* (en) M.E. Wieser (2006) - Atomic weights of the elements 2005 (IUPAC Technical Report), Pure and Applied Chemistry, 78 (11), pp. 2051–2066
* (en) David R. Lide (2004) - CRC Handbook of Chemistry and Physics (85th ed.), hoofdstuk 11, CRC Press - ISBN 978-0849304859
$^{36}$Sc · $^{37}$Sc · $^{38}$Sc · $^{38m}$Sc · $^{39}$Sc · $^{40}$Sc · $^{41}$Sc · $^{42}$Sc · $^{42m}$Sc · $^{43}$Sc · $^{43m1}$Sc · $^{43m2}$Sc · $^{44}$Sc · $^{44m1}$Sc · $^{44m2}$Sc · $^{44m3}$Sc · $^{45}$Sc · $^{45m}$Sc · $^{46}$Sc · $^{46m1}$Sc · $^{46m2}$Sc · $^{47}$Sc · $^{47m}$Sc · $^{48}$Sc · $^{49}$Sc · $^{50}$Sc · $^{50m}$Sc · $^{51}$Sc · $^{52}$Sc · $^{53}$Sc · $^{54}$Sc · $^{54m}$Sc · $^{55}$Sc · $^{56}$Sc · $^{57}$Sc · $^{58}$Sc · $^{59}$Sc · $^{60}$Sc · $^{61}$Sc