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Isotopen van platina
Es Chemisches ElementPlatin (Pt), mit a Atommasse ab 195.084(9) Sie, besitzt 5 Stall Isotope: 192pt, 194pt, 195pt, 196Pt und 198Pt, davon 195Pt am meisten reichlich (ca. 33,8%). Darüber hinaus in der Natur auch die Radioisotop190Pt dafür halbes Leben ab 650 MilliardeJahr Besitz. Die verbleibenden 30 Radioisotope sind instabil und haben relativ kurze Halbwertszeiten (die meisten weniger als ein .). zweite).
Das kurzlebige Isotop von Platin ist 166Pt, mit einer Halbwertszeit von etwa 300 Mikrosekunden. Die langlebigste ist 190Pt, mit einer Halbwertszeit von 650 Milliarden Jahren.
Überblick
| Nuklid | Z (p) | N (nein) | Isotope Masse (u) | halbes Leben | Radioaktiver Zerfall | VP | Kernspin | Isotopenverhältnis (Molenbruch) | Natürliches Vorkommen (Molbruch) |
|---|---|---|---|---|---|---|---|---|---|
| Anregungsenergie | |||||||||
| 166Pt | 78 | 88 | 165,99486(54) | 300(100) µs | 0 | ||||
| 167Pt | 78 | 89 | 166,99298(44) | 700(200) µs | 7/2− | ||||
| 168Pt | 78 | 90 | 167,98815(22) | 2,00(18) ms | α | 164Os | 0 | ||
| β (selten) | 168ir | ||||||||
| 169Pt | 78 | 91 | 168,98672(22) | 3,7(15) ms | α | 165Os | 3/2- | ||
| β (selten) | 169ir | ||||||||
| 170Pt | 78 | 92 | 169,982495(20) | 14,0(2) ms | (98%) | 166Os | 0 | ||
| β (2%) | 170ir | ||||||||
| 171Pt | 78 | 93 | 170,98124(9) | 51(2) ms | (99%) | 167Os | 3/2− | ||
| β (1%) | 171ir | ||||||||
| 172Pt | 78 | 94 | 171,977347(14) | 98,4(24) ms | (77%) | 168Os | 0 | ||
| β (23%) | 172ir | ||||||||
| 173Pt | 78 | 95 | 172,97644(6) | 365(7) ms | (84%) | 169Os | 5/2− | ||
| β (16%) | 173ir | ||||||||
| 174Pt | 78 | 96 | 173,972819(13) | 0,889(17) s | (83%) | 170Os | 0 | ||
| β (17%) | 174ir | ||||||||
| 175Pt | 78 | 97 | 174,972421(20) | 2,53(6) s | (64%) | 171Os | 5/2− | ||
| β (36%) | 175ir | ||||||||
| 176Pt | 78 | 98 | 175,968945(15) | 6.33(15) s | β (62%) | 176ir | 0 | ||
| (38%) | 172Os | ||||||||
| 177Pt | 78 | 99 | 176,968469(16) | 10.6(4) s | β (94,4%) | 177ir | 5/2− | ||
| (5,6%) | 173Os | ||||||||
| 177mPt | 147,4(4) keV | 2,2(3) µs | 1/2− | ||||||
| 178Pt | 78 | 100 | 177,965649(12) | 21.1(6) s | β (92,3%) | 178ir | 0 | ||
| (7,7%) | 174Os | ||||||||
| 179Pt | 78 | 101 | 178,965363(10) | 21,2(4) s | β (99,76%) | 179ir | 1/2− | ||
| (0,24%) | 175Os | ||||||||
| 180Pt | 78 | 102 | 179,963031(12) | 56(2) s | β (99,7%) | 180ir | 0 | ||
| (0,3%) | 176Os | ||||||||
| 181Pt | 78 | 103 | 180,963097(16) | 52,0(22) Sek. | β (99,93%) | 181ir | 1/2− | ||
| (0,074 %) | 177Os | ||||||||
| 182Pt | 78 | 104 | 181,961171(17) | 2,2(1) Minuten | β (99,96%) | 182ir | 0 | ||
| (0,038 %) | 178Os | ||||||||
| 183Pt | 78 | 105 | 182,961597(17) | 6,5(10) Minuten | β (99,99%) | 183ir | 1/2− | ||
| (0,0096%) | 179Os | ||||||||
| 183m1Pt | 34,50(8) keV | 43(5) s | β (99,99%) | 183ir | 7/2− | ||||
| (4×10−4%) | 179Os | ||||||||
| ES | 183Pt | ||||||||
| 183m2Pt | 195,68(11) keV | > 150 ns | 9/2 | ||||||
| 184Pt | 78 | 106 | 183,959922(19) | 17,3 (2) Minuten | β (99,99%) | 184ir | 0 | ||
| (0,00169%) | 180Os | ||||||||
| 184mPt | 1839.4(16) keV | 1,01(5) ms | ES | 184Pt | 8− | ||||
| 185Pt | 78 | 107 | 184,96062(4) | 70,9(24) min | β (99,99%) | 185ir | (9/2) | ||
| (0,005%) | 181Os | ||||||||
| 185mPt | 103,4(2) keV | 33,0(8) Min | β (98%) | 185ir | (1/2−) | ||||
| (2%) | 181Os | ||||||||
| 186Pt | 78 | 108 | 185,959351(23) | 2,08(5) Stunden | β (99,99%) | 186ir | 0 | ||
| (1,4×10−4%) | 182Os | ||||||||
| 187Pt | 78 | 109 | 186,96059(3) | 2,35(3) Stunden | β | 187ir | 3/2− | ||
| 188Pt | 78 | 110 | 187,959395(6) | 10,2(3) d | EV (99,99%) | 188ir | 0 | ||
| (2,6×10−5%) | 184Os | ||||||||
| 189Pt | 78 | 111 | 188,960834(12) | 10,87(12) Stunden | β | 189ir | 3/2− | ||
| 189m1Pt | 172,80(6) keV | 464(25) ns | 9/2− | ||||||
| 189m2Pt | 191,6(4) keV | 143(5) µs | (13/2) | ||||||
| 190Pt | 78 | 112 | 189,959932(6) | 6,5(3) × 1011 Jahr | α | 186Os | 0 | 1,4(1) × 10−4 | |
| 191Pt | 78 | 113 | 190,961677(5) | 2.862(7) Tage | EV | 191ir | 3/2− | ||
| 191m1Pt | 100,67(2) keV | > 1 µs | 9/2− | ||||||
| 191m2Pt | 149,04(2) keV | 95(5) µs | 13/2 | ||||||
| 192Pt | 78 | 114 | 191,9610380(27) | stabil | 0 | 0,00782(7) | |||
| 193Pt | 78 | 115 | 192,9629874(18) | 50(6) Jahre | EV | 193ir | 1/2− | ||
| 193mPt | 149,78(4) keV | 4,33(3) Tage | ES | 193Pt | 13/2 | ||||
| 194Pt | 78 | 116 | 193,9626803(9) | stabil | 0 | 0,32967(99) | |||
| 195Pt | 78 | 117 | 194,9647911(9) | stabil | 1/2− | 0,33832(10) | |||
| 195mPt | 259.30(8) keV | 4.010(5) Tage | ES | 195Pt | 13/2 | ||||
| 196Pt | 78 | 118 | 195,9649515(9) | stabil | 0 | 0,25242(41) | |||
| 197Pt | 78 | 119 | 196,9673402(9) | 19.8915(19) Stunden | β− | 197au | 1/2− | ||
| 197mPt | 399,59(20) keV | 95,41(18) min | IT (96,7%) | 197Pt | 13/2 | ||||
| β− (3,3%) | 197au | ||||||||
| 198Pt | 78 | 120 | 197,967893(3) | stabil | 0 | 0,07163(55) | |||
| 199Pt | 78 | 121 | 198,970593(3) | 30,80(21) min | β− | 199au | 5/2− | ||
| 199mPt | 424(2) keV | 13,6(4) s | ES | 199Pt | (13/2) | ||||
| 200Pt | 78 | 122 | 199,971441(22) | 12,5(3) Stunden | β− | 200au | 0 | ||
| 201Pt | 78 | 123 | 200,97451(5) | 2,5(1) Minuten | β− | 201au | (5/2−) | ||
| 202Pt | 78 | 124 | 201,97574(32) | 44(15) Stunden | β− | 202au | 0 | ||
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