Het chemisch element titanium (Ti), met een atoommassa van 47,867(1) u, bezit 5 stabiele isotopen: 46Ti, 47Ti, 48Ti, 49Ti en 50Ti, waarvan 48Ti het meest abundant is (ongeveer 74%). De overige 21 radio-isotopen zijn onstabiel en hebben een relatief korte halveringstijd (de meeste minder dan een seconde).
De kortstlevende isotoop van titanium is 38Ti, met een halfwaardetijd van minder dan 120 nanoseconden. De langstlevende is 44Ti, met een halfwaardetijd van meer dan 60 jaar.
Overzicht
| Nuclide | Z (p) | N (n) | Isotopische massa (u) | Halveringstijd | Radioactief verval | VP | Kernspin | Isotopische verhouding (molfractie) |
Natuurlijk voorkomen (molfractie) |
|---|---|---|---|---|---|---|---|---|---|
| Excitatie-energie | |||||||||
| 38Ti | 22 | 16 | 38,00977(27) | < 120 ns | 2p | 36Ca | 0+ | ||
| 39Ti | 22 | 17 | 39,00161(22) | 31(4) ms | β+, p (85%) | 38Ca | 3/2+ | ||
| β+ (15%) | 39Sc | ||||||||
| β+, 2p (< 0,1%) | 37K | ||||||||
| 40Ti | 22 | 18 | 39,99050(17) | 53,3(15) ms | β+ (56,99%) | 40Sc | 0+ | ||
| β+, p (43,01%) | 39Ca | ||||||||
| 41Ti | 22 | 19 | 40,98315(11) | 80,4(9) ms | β+, p (> 99,9%) | 40Ca | 3/2+ | ||
| β+ (< 0,1%) | 41Sc | ||||||||
| 42Ti | 22 | 20 | 41,973031(6) | 199(6) ms | β+ | 42Sc | 0+ | ||
| 43Ti | 22 | 21 | 42,968522(7) | 509(5) ms | β+ | 43Sc | 7/2− | ||
| 43m1Ti | 313,0(10) keV | 12,6(6) µs | (3/2+) | ||||||
| 43m2Ti | 3066,4(10) keV | 560(6) ns | (19/2-) | ||||||
| 44Ti | 22 | 22 | 43,9596901(8) | 60,0(11) jaar | EV | 44Sc | 0+ | ||
| 45Ti | 22 | 23 | 44,9581256(11) | 184,8(5) min | β+ | 45Sc | 7/2− | ||
| 46Ti | 22 | 24 | 45,9526316(9) | stabiel | 0+ | 0,0825(3) | |||
| 47Ti | 22 | 25 | 46,9517631(9) | stabiel | 5/2− | 0,0744(2) | |||
| 48Ti | 22 | 26 | 47,9479463(9) | stabiel | 0+ | 0,7372(3) | |||
| 49Ti | 22 | 27 | 48,9478700(9) | stabiel | 7/2− | 0,0541(2) | |||
| 50Ti | 22 | 28 | 49,9447912(9) | stabiel | 0+ | 0,0518(2) | |||
| 51Ti | 22 | 29 | 50,946615(1) | 5,76(1) min | β− | 51V | 3/2− | ||
| 52Ti | 22 | 30 | 51,946897(8) | 1,7(1) min | β− | 52V | 0+ | ||
| 53Ti | 22 | 31 | 52,94973(11) | 32,7(9) s | β− | 53V | (3/2)− | ||
| 54Ti | 22 | 32 | 53,95105(13) | 1,5(4) s | β− | 54V | 0+ | ||
| 55Ti | 22 | 33 | 54,95527(16) | 490(90) ms | β− | 55V | 3/2− | ||
| 56Ti | 22 | 34 | 55,95820(21) | 164(24) ms | β− (> 99,9%) | 56V | 0+ | ||
| β−, n (< 0,1%) | 55V | ||||||||
| 57Ti | 22 | 35 | 56,96399(49) | 60(16) ms | β− (> 99,9%) | 57V | 5/2− | ||
| β−, n (< ,1%) | 56V | ||||||||
| 58Ti | 22 | 36 | 57,96697(75) | 54(7) ms | β− | 58V | 0+ | ||
| 59Ti | 22 | 37 | 58,97293(75) | 30(3) ms | β− | 59V | (5/2−) | ||
| 60Ti | 22 | 38 | 59,97676(86) | 22(2) ms | β− | 60V | 0+ | ||
| 61Ti | 22 | 39 | 60,98320(97) | 10 ms | β− | 61V | 1/2− | ||
| β−, n | 60V | ||||||||
| 62Ti | 22 | 40 | 61,98749(97) | 10 ms | 0+ | ||||
| 63Ti | 22 | 41 | 62,99442(107) | 3 ms | 1/2− | ||||
Overzicht van isotopen per element
| 1 | 18 | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | H | 2 | Periodiek systeem | 13 | 14 | 15 | 16 | 17 | He | |||||||||
| 2 | Li | Be | De links verwijzen naar isotopen per element | B | C | N | O | F | Ne | |||||||||
| 3 | Na | Mg | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Al | Si | P | S | Cl | Ar |
| 4 | K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr |
| 5 | Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe |
| 6 | Cs | Ba | ↓ | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn |
| 7 | Fr | Ra | ↓↓ | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og |
| Lanthaniden | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | |||
| Actiniden | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | |||
Bronnen, noten en/of referenties
- (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
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