Isotopen van lutetium
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Het chemisch element lutetium (Lu), met een atoommassa van 174,967(1) u, bezit 1 stabiele isotoop: 175Lu, die ervan verdacht wordt om via α-verval te vervallen tot de radio-isotoop 171Tm. De isotoop bezit een natuurlijke abundantie van 97,41%. De andere in de natuur voorkomende isotoop is de radio-isotoop 176Lu, die een halfwaardetijd van 38,5 miljard jaar bezit. De overige 32 radio-isotopen zijn onstabiel en hebben een relatief korte halfwaardetijd (de meeste minder dan een seconde).
De kortstlevende isotoop van lutetium is 150Lu, met een halfwaardetijd van ongeveer 43 milliseconden. De langstlevende is 176Lu, met een halfwaardetijd van 37,8 miljard jaar.
Overzicht
| Nuclide | Z (p) | N (n) | Isotopische massa (u) | Halveringstijd | Radioactief verval | VP | Kernspin | Isotopische verhouding (molfractie) |
Natuurlijk voorkomen (molfractie) |
|---|---|---|---|---|---|---|---|---|---|
| Excitatie-energie | |||||||||
| 150Lu | 71 | 79 | 149,97323(54) | 43(5) ms | p (80%) | 149Yb | (2+) | ||
| β+ (20%) | 150Yb | ||||||||
| 150mLu | 34(15) keV | 80(60) µs | (1, 2) | ||||||
| 151Lu | 71 | 80 | 150,96758(43) | 80,6(19) ms | β+ | 151Yb | (11/2−) | ||
| 151mLu | 77(5) keV | 16(1) µs | (3/2+) | ||||||
| 152Lu | 71 | 81 | 151,96412(21) | 650(70) ms | β+ (85%) | 152Yb | (5−, 6−) | ||
| β+, p (15%) | 151Tm | ||||||||
| 153Lu | 71 | 82 | 152,95877(22) | 0,9(2) s | β+ | 153Yb | 11/2− | ||
| α | 149Tm | ||||||||
| 153m1Lu | 80(5) keV | 1 s | 1/2+ | ||||||
| 153m2Lu | 2502,5(4) keV | > 0,1 µs | 23/2− | ||||||
| 153m3Lu | 2632,9(5) keV | 15(3) µs | 27/2− | ||||||
| 154Lu | 71 | 83 | 153,95752(22) | 1 s | β+ | 154Yb | (2−) | ||
| 154m1Lu | 58(13) keV | 1,12(8) s | (9+) | ||||||
| 154m2Lu | > 2562 keV | 35(3) µs | (17+) | ||||||
| 155Lu | 71 | 84 | 154,954316(22) | 68,6(16) ms | α (76%) | 151Tm | (11/2−) | ||
| β+ (24%) | 155Yb | ||||||||
| 155m1Lu | 20(6) keV | 138(8) ms | α (88%) | 151Tm | (1/2+) | ||||
| β+ (12%) | 155Yb | ||||||||
| 155m2Lu | 1781,0(20) keV | 2,70(3) ms | (25/2−) | ||||||
| 156Lu | 71 | 85 | 155,95303(8) | 494(12) ms | α (95%) | 152Tm | 2− | ||
| β+ (5%) | 156Yb | ||||||||
| 156mLu | 220(80) keV | 198(2) ms | α (94%) | 152Tm | (9)+ | ||||
| β+ (6%) | 156Yb | ||||||||
| 157Lu | 71 | 86 | 156,950098(20) | 6,8(18) s | β+ | 157Yb | (1/2+, 3/2+) | ||
| α | 153Tm | ||||||||
| 157mLu | 21,0(20) keV | 4,79(12) s | β+ (94%) | 157Yb | (11/2−) | ||||
| α (6%) | 153Tm | ||||||||
| 158Lu | 71 | 87 | 157,949313(16) | 10,6(3) s | β+ (99,09%) | 158Yb | 2− | ||
| α (0,91%) | 154Tm | ||||||||
| 159Lu | 71 | 88 | 158,94663(4) | 12,1(10) s | β+ (99,96%) | 159Yb | 1/2+ | ||
| α (0,04%) | 155Tm | ||||||||
| 159mLu | 100(80) keV | 10 s | 11/2− | ||||||
| 160Lu | 71 | 89 | 159,94603(6) | 36,1(3) s | β+ | 160Yb | 2− | ||
| α (10−4%) | 156Tm | ||||||||
| 160mLu | 0(100) keV | 40(1) s | |||||||
| 161Lu | 71 | 90 | 160,94357(3) | 77(2) s | β+ | 161Yb | 1/2+ | ||
| 161mLu | 166(18) keV | 7,3(4) ms | IT | 161Lu | (9/2−) | ||||
| 162Lu | 71 | 91 | 161,94328(8) | 1,37(2) min | β+ | 162Yb | (1−) | ||
| 162m1Lu | 120(200) keV | 1,5 min | β+ | 162Yb | 4- | ||||
| IT (zelden) | 162Lu | ||||||||
| 162m2Lu | 300(200) keV | 1,9 min | |||||||
| 163Lu | 71 | 92 | 162,94118(3) | 3,97(13) min | β+ | 163Yb | 1/2+ | ||
| 164Lu | 71 | 93 | 163,94134(3) | 3,14(3) min | β+ | 164Yb | 1− | ||
| 165Lu | 71 | 94 | 164,939407(28) | 10,74(10) min | β+ | 165Yb | 1/2+ | ||
| 166Lu | 71 | 95 | 165,93986(3) | 2,65(10) min | β+ | 166Yb | (6−) | ||
| 166m1Lu | 34,37(5) keV | 1,41(10) min | EV (58%) | 166Yb | 3− | ||||
| IT (42%) | 166Lu | ||||||||
| 166m2Lu | 42,9(5) keV | 2,12(10) min | 0− | ||||||
| 167Lu | 71 | 96 | 166,93827(3) | 51,5(10) min | β+ | 167Yb | 7/2+ | ||
| 167mLu | 0(30) keV | > 1 min | 1/2− | ||||||
| 168Lu | 71 | 97 | 167,93874(5) | 5,5(1) min | β+ | 168Yb | (6−) | ||
| 168mLu | 180(110) keV | 6,7(4) min | β+ (95%) | 168Yb | 3+ | ||||
| IT (5%) | 168Lu | ||||||||
| 169Lu | 71 | 98 | 168,937651(6) | 34,06(5) uur | β+ | 169Yb | 7/2+ | ||
| 169mLu | 29,0(5) keV | 160(10) s | IT | 169Lu | 1/2− | ||||
| 170Lu | 71 | 99 | 169,938475(18) | 2,012(20) dagen | β+ | 170Yb | 0+ | ||
| 170mLu | 92,91(9) keV | 670(100) ms | IT | 170Lu | 4− | ||||
| 171Lu | 71 | 100 | 170,9379131(30) | 8,24(3) dagen | β+ | 171Yb | 7/2+ | ||
| 171mLu | 71,13(8) keV | 79(2) s | IT | 171Lu | 1/2− | ||||
| 172Lu | 71 | 101 | 171,939086(3) | 6,70(3) dagen | β+ | 172Yb | 4− | ||
| 172m1Lu | 41,86(4) keV | 3,7(5) min | IT | 172Lu | 1− | ||||
| 172m2Lu | 65,79(4) keV | 0,332(20) µs | 1+ | ||||||
| 172m3Lu | 109,41(10) keV | 440(12) µs | 1+ | ||||||
| 172m4Lu | 213,57(17) keV | 150 ns | (6−) | ||||||
| 173Lu | 71 | 102 | 172,9389306(26) | 1,37(1) jaar | EV | 173Yb | 7/2+ | ||
| 173mLu | 123,672(13) keV | 74,2(10) µs | 5/2− | ||||||
| 174Lu | 71 | 103 | 173,9403375(26) | 3,31(5) jaar | β+ | 174Yb | 1− | ||
| 174m1Lu | 170,83(5) keV | 142(2) dagen | IT (99,38%) | 174Lu | 6− | ||||
| EV (0,62%) | 174Yb | ||||||||
| 174m2Lu | 240,818(4) keV | 395(15) ns | (3+) | ||||||
| 174m3Lu | 365,183(6) keV | 145(3) ns | (4−) | ||||||
| 175Lu | 71 | 104 | 174,9407718(23) | stabiel | 7/2+ | 0,9741(2) | |||
| 175m1Lu | 1392,2(6) keV | 984(30) µs | (19/2+) | ||||||
| 175m2Lu | 353,48(13) keV | 1,49(7) µs | 5/2− | ||||||
| 176Lu | 71 | 105 | 175,9426863(23) | 38,5(7) × 109 jaar | β− | 176Hf | 7- | 0,0259(2) | |
| 176mLu | 122,855(6) keV | 3,664(19) uur | β− (99,9%) | 176Hf | 1− | ||||
| EV (0,095%) | 176Yb | ||||||||
| 177Lu | 71 | 106 | 176,9437581(23) | 6,6475(20) dagen | β− | 177Hf | 7/2+ | ||
| 177m1Lu | 150,3967(10) keV | 130(3) ns | 9/2− | ||||||
| 177m2Lu | 569,7068(16) keV | 155(7) µs | 1/2+ | ||||||
| 177m3Lu | 970,1750(24) keV | 160,44(6) dagen | β− (78,3%) | 177Hf | 23/2− | ||||
| IT (21,7%) | 177Lu | ||||||||
| 177m4Lu | 3900(10) keV | 7(2) min | 39/2− | ||||||
| 178Lu | 71 | 107 | 177,945955(3) | 28,4(2) min | β− | 178Hf | 1+ | ||
| 178mLu | 123,8(26) keV | 23,1(3) min | β− | 178Hf | 9− | ||||
| 179Lu | 71 | 108 | 178,947327(6) | 4,59(6) uur | β− | 179Hf | 7/2+ | ||
| 179mLu | 592,4(4) keV | 3,1(9) ms | IT | 179Lu | 1/2+ | ||||
| 180Lu | 71 | 109 | 179,94988(8) | 5,7(1) min | β− | 180Hf | 5+ | ||
| 180m1Lu | 13,9(3) keV | ± 1 s | IT | 180Lu | 3− | ||||
| 180m2Lu | 624,0(5) keV | > 1 ms | (9−) | ||||||
| 181Lu | 71 | 110 | 180,95197(32) | 3,5(3) min | β− | 181Hf | (7/2+) | ||
| 182Lu | 71 | 111 | 181,95504(21) | 2,0(2) min | β− | 182Hf | (0, 1, 2) | ||
| 183Lu | 71 | 112 | 182,95757(32) | 58(4) s | β− | 183Hf | (7/2+) | ||
| 184Lu | 71 | 113 | 183,96091(43) | 20(3) s | β− | 184Hf | (3+) | ||
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
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