Isotop platina

Platina (₇₈Pt) yang terbentuk secara alami terdiri dari lima isotop stabil (¹⁹²Pt, ¹⁹⁴Pt, ¹⁹⁵Pt, ¹⁹⁶Pt, ¹⁹⁸Pt) dan satu radioisotop sangat berumur panjang (¹⁹⁰Pt, waktu paruhnya 6,50 tahun). Ada juga 34 radioisotop sintetis yang diketahui, yang berumur paling panjang adalah ¹⁹³Pt dengan waktu paruh 50 tahun. Semua isotop lain memiliki waktu paruh di bawah satu tahun, sebagian besar di bawah satu hari. Semua isotop platinium bersifat radioaktif atau stabil secara pengamatan, artinya mereka diprediksi radioaktif tetapi tidak ada peluruhan aktual yang teramati.

Daftar isotop

|- | ¹⁶⁵Pt | style="text-align:right" | 78 | style="text-align:right" | 87 | | 260(+260-90) μdtk | α | ¹⁶¹Os | | | |- | ¹⁶⁶Pt | style="text-align:right" | 78 | style="text-align:right" | 88 | 165,99486(54)# | 260(+300-60) μdtk | α | ¹⁶²Os | 0+ | | |- | ¹⁶⁷Pt | style="text-align:right" | 78 | style="text-align:right" | 89 | 166,99298(44)# | 1,1(2) mdtk | α | ¹⁶³Os | 7/2−# | | |- | rowspan=2|¹⁶⁸Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 90 | rowspan=2|167,98815(22) | rowspan=2|2,00(18) mdtk | α | ¹⁶⁴Os | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | β⁺ (langka) | ¹⁶⁸Ir |- | rowspan=2|¹⁶⁹Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 91 | rowspan=2|168,98672(22)# | rowspan=2|3,7(15) mdtk | α | ¹⁶⁵Os | rowspan=2|3/2−# | rowspan=2| | rowspan=2| |- | β⁺ (langka) | ¹⁶⁹Ir |- | rowspan=2|¹⁷⁰Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 92 | rowspan=2|169,982495(20) | rowspan=2|14,0(2) mdtk | α (98%) | ¹⁶⁶Os | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | β⁺ (2%) | ¹⁷⁰Ir |- | rowspan=2|¹⁷¹Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 93 | rowspan=2|170,98124(9) | rowspan=2|51(2) mdtk | α (99%) | ¹⁶⁷Os | rowspan=2|3/2−# | rowspan=2| | rowspan=2| |- | β⁺ (1%) | ¹⁷¹Ir |- | rowspan=2|¹⁷²Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 94 | rowspan=2|171,977347(14) | rowspan=2|98,4(24) mdtk | α (77%) | ¹⁶⁸Os | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | β⁺ (23%) | ¹⁷²Ir |- | rowspan=2|¹⁷³Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 95 | rowspan=2|172,97644(6) | rowspan=2|365(7) mdtk | α (84%) | ¹⁶⁹Os | rowspan=2|5/2−# | rowspan=2| | rowspan=2| |- | β⁺ (16%) | ¹⁷³Ir |- | rowspan=2|¹⁷⁴Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 96 | rowspan=2|173,972819(13) | rowspan=2|0,889(17) dtk | α (83%) | ¹⁷⁰Os | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | β⁺ (17%) | ¹⁷⁴Ir |- | rowspan=2|¹⁷⁵Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 97 | rowspan=2|174,972421(20) | rowspan=2|2,53(6) dtk | α (64%) | ¹⁷¹Os | rowspan=2|5/2−# | rowspan=2| | rowspan=2| |- | β⁺ (36%) | ¹⁷⁵Ir |- | rowspan=2|¹⁷⁶Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 98 | rowspan=2|175,968945(15) | rowspan=2|6,33(15) dtk | β⁺ (62%) | ¹⁷⁶Ir | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | α (38%) | ¹⁷²Os |- | rowspan=2|¹⁷⁷Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 99 | rowspan=2|176,968469(16) | rowspan=2|10,6(4) dtk | β⁺ (94,4%) | ¹⁷⁷Ir | rowspan=2|5/2− | rowspan=2| | rowspan=2| |- | α (5,6%) | ¹⁷³Os |- | style="text-indent:1em" | ^177mPt | colspan="3" style="text-indent:2em" | 147,4(4) keV | 2,2(3) μdtk | | | 1/2− | | |- | rowspan=2|¹⁷⁸Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 100 | rowspan=2|177,965649(12) | rowspan=2|21,1(6) dtk | β⁺ (92,3%) | ¹⁷⁸Ir | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | α (7,7%) | ¹⁷⁴Os |- | rowspan=2|¹⁷⁹Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 101 | rowspan=2|178,965363(10) | rowspan=2|21,2(4) dtk | β⁺ (99,76%) | ¹⁷⁹Ir | rowspan=2|1/2− | rowspan=2| | rowspan=2| |- | α (0,24%) | ¹⁷⁵Os |- | rowspan=2|¹⁸⁰Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 102 | rowspan=2|179,963031(12) | rowspan=2|56(2) dtk | β⁺ (99,7%) | ¹⁸⁰Ir | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | α (0,3%) | ¹⁷⁶Os |- | rowspan=2|¹⁸¹Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 103 | rowspan=2|180,963097(16) | rowspan=2|52,0(22) dtk | β⁺ (99,93%) | ¹⁸¹Ir | rowspan=2|1/2− | rowspan=2| | rowspan=2| |- | α (0,074%) | ¹⁷⁷Os |- | rowspan=2|¹⁸²Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 104 | rowspan=2|181,961171(17) | rowspan=2|2,2(1) mnt | β⁺ (99,96%) | ¹⁸²Ir | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | α (0,038%) | ¹⁷⁸Os |- | rowspan=2|¹⁸³Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 105 | rowspan=2|182,961597(17) | rowspan=2|6,5(10) mnt | β⁺ (99,99%) | ¹⁸³Ir | rowspan=2|1/2− | rowspan=2| | rowspan=2| |- | α (0,0096%) | ¹⁷⁹Os |- | rowspan=3 style="text-indent:1em" | ^183m1Pt | rowspan=3 colspan="3" style="text-indent:2em" | 34,50(8) keV | rowspan=3|43(5) dtk | β⁺ (99,99%) | ¹⁸³Ir | rowspan=3|(7/2)− | rowspan=3| | rowspan=3| |- | α (4%) | ¹⁷⁹Os |- | IT | ¹⁸³Pt |- | style="text-indent:1em" | ^183m2Pt | colspan="3" style="text-indent:2em" | 195,68(11) keV | >150 ndtk | | | (9/2)+ | | |- | rowspan=2|¹⁸⁴Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 106 | rowspan=2|183,959922(19) | rowspan=2|17,3(2) mnt | β⁺ (99,99%) | ¹⁸⁴Ir | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | α (0,00169%) | ¹⁸⁰Os |- | style="text-indent:1em" | ^184mPt | colspan="3" style="text-indent:2em" | 1839,4(16) keV | 1,01(5) mdtk | IT | ¹⁸⁴Pt | 8− | | |- | rowspan=2|¹⁸⁵Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 107 | rowspan=2|184,96062(4) | rowspan=2|70,9(24) mnt | β⁺ (99,99%) | ¹⁸⁵Ir | rowspan=2|(9/2+) | rowspan=2| | rowspan=2| |- | α (),005%) | ¹⁸¹Os |- | rowspan=2 style="text-indent:1em" | ^185mPt | rowspan=2 colspan="3" style="text-indent:2em" | 103,4(2) keV | rowspan=2|33,0(8) mnt | β⁺ (98%) | ¹⁸⁵Ir | rowspan=2|(1/2−) | rowspan=2| | rowspan=2| |- | α (2%) | ¹⁸¹Os |- | rowspan=2|¹⁸⁶Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 108 | rowspan=2|185,959351(23) | rowspan=2|2,08(5) jam | β⁺ (99,99%) | ¹⁸⁶Ir | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | α (1,4%) | ¹⁸²Os |- | ¹⁸⁷Pt | style="text-align:right" | 78 | style="text-align:right" | 109 | 186,96059(3) | 2,35(3) jam | β⁺ | ¹⁸⁷Ir | 3/2− | | |- | rowspan=2|¹⁸⁸Pt | rowspan=2 style="text-align:right" | 78 | rowspan=2 style="text-align:right" | 110 | rowspan=2|187,959395(6) | rowspan=2|10,2(3) hri | EC (99,99%) | ¹⁸⁸Ir | rowspan=2|0+ | rowspan=2| | rowspan=2| |- | α (2,6%) | ¹⁸⁴Os |- | ¹⁸⁹Pt | style="text-align:right" | 78 | style="text-align:right" | 111 | 188,960834(12) | 10,87(12) jam | β⁺ | ¹⁸⁹Ir | 3/2− | | |- | style="text-indent:1em" | ^189m1Pt | colspan="3" style="text-indent:2em" | 172,80(6) keV | 464(25) ndtk | | | 9/2− | | |- | style="text-indent:1em" | ^189m2Pt | colspan="3" style="text-indent:2em" | 191,6(4) keV | 143(5) μdtk | | | (13/2+) | | |- | ¹⁹⁰Pt | style="text-align:right" | 78 | style="text-align:right" | 112 | 189,959932(6) | 6,5(3) thn | α | ¹⁸⁶Os | 0+ | 1,4(1) | |- | ¹⁹¹Pt | style="text-align:right" | 78 | style="text-align:right" | 113 | 190,961677(5) | 2,862(7) hri | EC | ¹⁹¹Ir | 3/2− | | |- | style="text-indent:1em" | ^191m1Pt | colspan="3" style="text-indent:2em" | 100,67(2) keV | >1 μdtk | | | (9/2)− | | |- | style="text-indent:1em" | ^191m2Pt | colspan="3" style="text-indent:2em" | 149,04(2) keV | 95(5) μdtk | | | (13/2)+ | | |- | ¹⁹²Pt | style="text-align:right" | 78 | style="text-align:right" | 114 | 191,9610380(27) | colspan=3 align=center|Stabil Secara Pengamatan | 0+ | 0,00782(7) | |- | ¹⁹³Pt | style="text-align:right" | 78 | style="text-align:right" | 115 | 192,9629874(18) | 50(6) thn | EC | ¹⁹³Ir | 1/2− | | |- | style="text-indent:1em" | ^193mPt | colspan="3" style="text-indent:2em" | 149,78(4) keV | 4,33(3) hri | IT | ¹⁹³Pt | 13/2+ | | |- | ¹⁹⁴Pt | style="text-align:right" | 78 | style="text-align:right" | 116 | 193,9626803(9) | colspan=3 align=center|Stabil Secara Pengamatan | 0+ | 0,32967(99) | |- | ¹⁹⁵Pt | style="text-align:right" | 78 | style="text-align:right" | 117 | 194,9647911(9) | colspan=3 align=center|Stabil Secara Pengamatan | 1/2− | 0,33832(10) | |- | style="text-indent:1em" | ^195mPt | colspan="3" style="text-indent:2em" | 259,30(8) keV | 4,010(5) hri | IT | ¹⁹⁵Pt | 13/2+ | | |- | ¹⁹⁶Pt | style="text-align:right" | 78 | style="text-align:right" | 118 | 195,9649515(9) | colspan=3 align=center|Stabil Secara Pengamatan | 0+ | 0,25242(41) | |- | ¹⁹⁷Pt | style="text-align:right" | 78 | style="text-align:right" | 119 | 196,9673402(9) | 19,8915(19) jam | β⁻ | ¹⁹⁷Au | 1/2− | | |- | rowspan=2 style="text-indent:1em" | ^197mPt | rowspan=2 colspan="3" style="text-indent:2em" | 399,59(20) keV | rowspan=2|95,41(18) mnt | IT (96,7%) | ¹⁹⁷Pt | rowspan=2|13/2+ | rowspan=2| | rowspan=2| |- | β⁻ (3,3%) | ¹⁹⁷Au |- | ¹⁹⁸Pt | style="text-align:right" | 78 | style="text-align:right" | 120 | 197,967893(3) | colspan=3 align=center|Stabil Secara Pengamatan | 0+ | 0,07163(55) | |- | ¹⁹⁹Pt | style="text-align:right" | 78 | style="text-align:right" | 121 | 198,970593(3) | 30,80(21) mnt | β⁻ | ¹⁹⁹Au | 5/2− | | |- | style="text-indent:1em" | ^199mPt | colspan="3" style="text-indent:2em" | 424(2) keV | 13,6(4) dtk | IT | ¹⁹⁹Pt | (13/2)+ | | |- | ²⁰⁰Pt | style="text-align:right" | 78 | style="text-align:right" | 122 | 199,971441(22) | 12,5(3) jam | β⁻ | ²⁰⁰Au | 0+ | | |- | ²⁰¹Pt | style="text-align:right" | 78 | style="text-align:right" | 123 | 200,97451(5) | 2,5(1) mnt | β⁻ | ²⁰¹Au | (5/2−) | | |- | ²⁰²Pt | style="text-align:right" | 78 | style="text-align:right" | 124 | 201,97574(32) | 44(15) jam | β⁻ | ²⁰²Au | 0+ | | |- | style="text-indent:1em" | ^202mPt | colspan="3" style="text-indent:2em" | 1788.5(0.4) keV | 141(7) μdtk | IT | ²⁰²Pt | (7-) | | |- | ²⁰³Pt | style="text-align:right" | 78 | style="text-align:right" | 125 | 202,97893(200)# | 22(4) dtk | β⁻ | ²⁰³Au | (1/2-) | | |- | style="text-indent:1em" | ^203mPt | colspan="3" style="text-indent:2em" | 3100# keV | 641(55) μdtk | IT | ²⁰³Pt | 33/2+# | | |- | ²⁰⁴Pt | style="text-align:right" | 78 | style="text-align:right" | 126 | 203,98076(200)# | 10,3(14) dtk | β⁻ | ²⁰⁴Au | 0+ | | |- | style="text-indent:1em" | ^204m1Pt | colspan="3" style="text-indent:2em" | 1995,1(0,7) keV | 5,5(7) μdtk | IT | ²⁰⁴Pt | (5-) | | |- | style="text-indent:1em" | ^204m2Pt | colspan="3" style="text-indent:2em" | 2035(23) keV | 55(3) μdtk | IT | ²⁰⁴Pt | (7-) | | |- | style="text-indent:1em" | ^204m3Pt | colspan="3" style="text-indent:2em" | 3193(23) keV | 146(14) ndtk | IT | ²⁰⁴Pt | (10+) | |

Sumber dan atribusi

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