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Isotopen van iridium
Es Chemisches ElementIridium (Ir), mit a Atommasse ab 192.217(3) Sie, besitzt 2 Stall Isotope: 191ir und 193Ir, der letzte von denen die meisten verhindert (ca. 62,7%). Die 33 Radioisotope sind instabil und haben eine relativ kurze Halbwertszeit (meistens weniger als eins). zweite).
Das kurzlebige Isotop von Iridium ist 162Ir, mit einer Halbwertszeit von etwa 1,87 Millisekunden. Die langlebigste ist 192Ir, mit einer Halbwertszeit von 73,83 Tagen. Iridium-192 ist ein starker Gammastrahler und ist enthalten Strahlentherapie eingesetzt.
Überblick
| Nuklid | Z (p) | N (nein) | Isotope Masse (u) | halbes Leben | Radioaktiver Zerfall | VP | Kernspin | Isotopenverhältnis (Molenbruch) | Natürliches Vorkommen (Molbruch) |
|---|---|---|---|---|---|---|---|---|---|
| Anregungsenergie | |||||||||
| 164ir | 77 | 87 | 163,99220(44) | 1 ms | 2− | ||||
| 164mir | 270(110) keV | 94(27) µs | 9 | ||||||
| 165ir | 77 | 88 | 164,98752(23) | < 1 µs | p | 164Os | 1/2 | ||
| α (selten) | 161Re | ||||||||
| 165mir | 180(50) keV | 300(60) µs | p (87%) | 164Os | 11/2− | ||||
| (13%) | 161Re | ||||||||
| 166ir | 77 | 89 | 165,98582(22) | 10,5(22) ms | (93%) | 162Re | (2−) | ||
| p (7%) | 165Os | ||||||||
| 166mir | 172(6) keV | 15,1(9) ms | (98,2%) | 162Re | (9) | ||||
| p (1,8%) | 165Os | ||||||||
| 167ir | 77 | 90 | 166,981665(20) | 35,2 (20) ms | (48%) | 163Re | 1/2 | ||
| p (32%) | 166Os | ||||||||
| β (20%) | 167Os | ||||||||
| 167 mir | 175.3(22) keV | 30,0(6)ms | (80%) | 163Re | 11/2− | ||||
| β (20%) | 167Os | ||||||||
| p (0,4%) | 166Os | ||||||||
| 168ir | 77 | 91 | 167,97988(16) | 161(21) ms | α | 164Re | |||
| β (selten) | 168Os | ||||||||
| 168mir | 50(100) keV | 125(40) ms | α | 164Re | |||||
| 169ir | 77 | 92 | 168,976295(28) | 780 (360) ms | α | 165Re | 1/2 | ||
| β (selten) | 169Os | ||||||||
| 169mir | 154(24) keV | 308(22) ms | (72%) | 165Re | 11/2− | ||||
| β (28%) | 169Os | ||||||||
| 170ir | 77 | 93 | 169,97497(11) | 910(150) ms | β (64%) | 170Os | |||
| (36%) | 166Re | ||||||||
| 170mir | 270(70) keV | 440(60) ms | |||||||
| 171ir | 77 | 94 | 170,97163(4) | 3,6(10) s | (58%) | 167Re | 1/2 | ||
| β (42%) | 171Os | ||||||||
| 171mir | 180(30) keV | 1,40(10) s | (11/2−) | ||||||
| 172ir | 77 | 95 | 171,97046(11) | 4.4(3) s | β (98%) | 172Os | (3) | ||
| (2%) | 168Re | ||||||||
| 172mir | 280(100) keV | 2.0(1) s | β (77%) | 172Os | (7) | ||||
| (23%) | 168Re | ||||||||
| 173ir | 77 | 96 | 172,967502(15) | 9,0(8) Sek. | β (93%) | 173Os | (3/2, 5/2) | ||
| (7%) | 169Re | ||||||||
| 173mir | 253(27) keV | 2.20(5) s | β (88%) | 173Os | (11/2−) | ||||
| (12 %) | 169Re | ||||||||
| 174ir | 77 | 97 | 173,966861(30) | 7,9(6) s | β (99,5%) | 174Os | (3) | ||
| (0,5%) | 170Re | ||||||||
| 174mir | 193(11) keV | 4,9(3) Sek. | β (99,53%) | 174Os | (7) | ||||
| (0,47 %) | 170Re | ||||||||
| 175ir | 77 | 98 | 174,964113(21) | 9(2) s | β (99,15%) | 175Os | (5/2−) | ||
| (0,85%) | 171Re | ||||||||
| 176ir | 77 | 99 | 175,963649(22) | 8.3(6) s | β (97,9%) | 176Os | |||
| (2,1%) | 172Re | ||||||||
| 177ir | 77 | 100 | 176,961302(21) | 30(2) s | β (99,94%) | 177Os | 5/2− | ||
| (0,06%) | 173Re | ||||||||
| 178ir | 77 | 101 | 177,961082(21) | 12(2) s | β | 178Os | |||
| 179ir | 77 | 102 | 178,959122(12) | 79(1) s | β | 179Os | (5/2)− | ||
| 180ir | 77 | 103 | 179,959229(23) | 1,5(1) Minuten | β | 180Os | (4, 5) | ||
| 181ir | 77 | 104 | 180,957625(28) | 4,90(15) min | β | 181Os | 5/2− | ||
| 182ir | 77 | 105 | 181,958076(23) | 15(1) Minuten | β | 182Os | (3) | ||
| 183ir | 77 | 106 | 182,956846(27) | 57(4) Minuten | β ( 99,95%) | 183Os | 5/2− | ||
| (0,05%) | 179Re | ||||||||
| 184ir | 77 | 107 | 183,95748(3) | 3.09(3) Stunden | β | 184Os | 5− | ||
| 184m1ir | 225,65(11) keV | 470 (30) µs | 3 | ||||||
| 184m2ir | 328,40(24) keV | 350(90) ns | 7 | ||||||
| 185ir | 77 | 108 | 184,95670(3) | 14,4(1) Stunden | β | 185Os | 5/2− | ||
| 186ir | 77 | 109 | 185,957946(18) | 16.64(3) Stunden | β | 186Os | 5 | ||
| 186mir | 0,8(4) keV | 1,92(5) Stunden | β | 186Os | 2− | ||||
| ES (selten) | 186ir | ||||||||
| 187ir | 77 | 110 | 186,957363(7) | 10,5(3) Stunden | β | 187Os | 3/2 | ||
| 187m1ir | 186,15(4) keV | 30,3(6) ms | ES | 187ir | 9/2− | ||||
| 187m2ir | 433,81(9) keV | 152(12) ns | 11/2− | ||||||
| 188ir | 77 | 111 | 187,958853(8) | 41,5(5) Stunden | β | 188Os | 1− | ||
| 188mir | 970(30) keV | 4,2(2) ms | ES | 188ir | 7 | ||||
| β (seltsam) | 188Os | ||||||||
| 189ir | 77 | 112 | 188,958719(14) | 13,2(1) Tage | EV | 189Os | 3/2 | ||
| 189m1ir | 372,18(4) keV | 13,3(3) ms | ES | 189ir | 11/2− | ||||
| 189m2ir | 2333,3(4) keV | 3,7 (2) ms | 25/2 | ||||||
| 190ir | 77 | 113 | 189,9605460(18) | 11.78(10) Tage | β | 190Os | 4− | ||
| 190m1ir | 26,1(1) keV | 1.120(3) Stunden | ES | 190ir | (1−) | ||||
| 190m2ir | 36.154(25) keV | > 2 µs | 4 | ||||||
| 190m3ir | 376,4(1) keV | 3.087(12) Stunden | 11− | ||||||
| 191ir | 77 | 114 | 190,9605940(18) | stabil | 3/2 | 0,373(2) | |||
| 191m1ir | 171,24(5) keV | 4,94(3) Sek. | ES | 191ir | 11/2− | ||||
| 191m2ir | 2120(40) keV | 5,5(7) s | |||||||
| 192ir | 77 | 115 | 191,9626050(18) | 73.827(13) Tage | β− (95,24%) | 192Pt | 4 | ||
| EV (4,76%) | 192Os | ||||||||
| 192m1ir | 56.720(5) keV | 1,45(5) min | 1− | ||||||
| 192m2ir | 168,14(12) keV | 241(9) Jahre | (11−) | ||||||
| 193ir | 77 | 116 | 192,9629264(18) | stabil | 3/2 | 0,627(2) | |||
| 193mir | 80.240(6) keV | 10,53(4) Tage | ES | 193ir | 11/2− | ||||
| 194ir | 77 | 117 | 193,9650784(18) | 19.28(13) Stunden | β− | 194Pt | 1− | ||
| 194m1ir | 147,078(5) keV | 31,85(24) ms | ES | 194ir | (4) | ||||
| 194m2ir | 370(70) keV | 171(11) Tage | (10,11)− | ||||||
| 195ir | 77 | 118 | 194,9659796(18) | 2,5(2) Stunden | β− | 195Pt | 3/2 | ||
| 195mir | 100(5) keV | 3,8 (2) Stunden | β− (95%) | 195Pt | 11/2− | ||||
| IT (5%) | 195ir | ||||||||
| 196ir | 77 | 119 | 195,96840(4) | 52(1) s | β− | 196Pt | (0−) | ||
| 196mir | 210(40) keV | 1,40(2) Stunden | β− (99,7%) | 196Pt | (10, 11−) | ||||
| ES | 196ir | ||||||||
| 197ir | 77 | 120 | 196,969653(22) | 5,8(5) Minuten | β− | 197Pt | 3/2 | ||
| 197mir | 115(5) keV | 8,9(3) min | β− (99,75%) | 197Pt | 11/2− | ||||
| IT (0,25%) | 197ir | ||||||||
| 198ir | 77 | 121 | 197,97228(21) | 8(1) s | β− | 198Pt | |||
| 199ir | 77 | 122 | 198,97380(4) | 20 Sek. | β− | 199Pt | 3/2 | ||
Übersicht der Isotope pro Element
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