Isotop platina

**[[Platina]]** (**<sub>78</sub>Pt**) 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)&nbsp;μdtk
| α
| 161Os
|
|
|
|-
| 166Pt
| style="text-align:right" | 78
| style="text-align:right" | 88
| 165,99486(54)#
| 260(+300-60)&nbsp;μdtk
| α
| 162Os
| 0+
|
|
|-
| 167Pt
| style="text-align:right" | 78
| style="text-align:right" | 89
| 166,99298(44)#
| 1,1(2)&nbsp;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)&nbsp;mdtk
| α
| 164Os
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| β<sup>+</sup> (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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;keV
| 2,2(3)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;keV
| rowspan=3|43(5)&nbsp;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)&nbsp;keV
| >150&nbsp;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)&nbsp;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)&nbsp;keV
| 1,01(5)&nbsp;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)&nbsp;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)&nbsp;keV
| rowspan=2|33,0(8)&nbsp;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)&nbsp;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)&nbsp;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)&nbsp;hri
| EC (99,99%)
| 188Ir
| rowspan=2|0+
| rowspan=2|
| rowspan=2|
|-
| α (2,6%)
| **<sup>184</sup>Os**
|-
| 189Pt
| style="text-align:right" | 78
| style="text-align:right" | 111
| 188,960834(12)
| 10,87(12)&nbsp;jam
| β+
| 189Ir
| 3/2−
|
|
|-
| style="text-indent:1em" | 189m1Pt
| colspan="3" style="text-indent:2em" | 172,80(6)&nbsp;keV
| 464(25)&nbsp;ndtk
|
|
| 9/2−
|
|
|-
| style="text-indent:1em" | 189m2Pt
| colspan="3" style="text-indent:2em" | 191,6(4)&nbsp;keV
| 143(5)&nbsp;μdtk
|
|
| (13/2+)
|
|
|-
| 190Pt
| style="text-align:right" | 78
| style="text-align:right" | 112
| 189,959932(6)
| **6,5(3) thn**
| α
| ***<sup>186</sup>Os***
| 0+
| 1,4(1)
|
|-
| 191Pt
| style="text-align:right" | 78
| style="text-align:right" | 113
| 190,961677(5)
| 2,862(7)&nbsp;hri
| EC
| **<sup>191</sup>Ir**
| 3/2−
|
|
|-
| style="text-indent:1em" | 191m1Pt
| colspan="3" style="text-indent:2em" | 100,67(2)&nbsp;keV
| >1&nbsp;μdtk
|
|
| (9/2)−
|
|
|-
| style="text-indent:1em" | 191m2Pt
| colspan="3" style="text-indent:2em" | 149,04(2)&nbsp;keV
| 95(5)&nbsp;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)&nbsp;thn
| EC
| **<sup>193</sup>Ir**
| 1/2−
|
|
|-
| style="text-indent:1em" | 193mPt
| colspan="3" style="text-indent:2em" | 149,78(4)&nbsp;keV
| 4,33(3)&nbsp;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)&nbsp;keV
| 4,010(5)&nbsp;hri
| IT
| **<sup>195</sup>Pt**
| 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)&nbsp;jam
| β−
| **<sup>197</sup>Au**
| 1/2−
|
|
|-
| rowspan=2 style="text-indent:1em" | 197mPt
| rowspan=2 colspan="3" style="text-indent:2em" | 399,59(20)&nbsp;keV
| rowspan=2|95,41(18)&nbsp;mnt
| IT (96,7%)
| 197Pt
| rowspan=2|13/2+
| rowspan=2|
| rowspan=2|
|-
| β− (3,3%)
| **<sup>197</sup>Au**
|-
| 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)&nbsp;mnt
| β−
| 199Au
| 5/2−
|
|
|-
| style="text-indent:1em" | 199mPt
| colspan="3" style="text-indent:2em" | 424(2)&nbsp;keV
| 13,6(4)&nbsp;dtk
| IT
| 199Pt
| (13/2)+
|
|
|-
| 200Pt
| style="text-align:right" | 78
| style="text-align:right" | 122
| 199,971441(22)
| 12,5(3)&nbsp;jam
| β−
| 200Au
| 0+
|
|
|-
| 201Pt
| style="text-align:right" | 78
| style="text-align:right" | 123
| 200,97451(5)
| 2,5(1)&nbsp;mnt
| β−
| 201Au
| (5/2−)
|
|
|-
| 202Pt
| style="text-align:right" | 78
| style="text-align:right" | 124
| 201,97574(32)
| 44(15)&nbsp;jam
| β−
| 202Au
| 0+
|
|
|-
| style="text-indent:1em" | 202mPt
| colspan="3" style="text-indent:2em" | 1788.5(0.4)&nbsp;keV
| 141(7)&nbsp;μdtk
| IT
| 202Pt
| (7-)
|
|
|-
| 203Pt
| style="text-align:right" | 78
| style="text-align:right" | 125
| 202,97893(200)#
| 22(4)&nbsp;dtk
| β−
| 203Au
| (1/2-)
|
|
|-
| style="text-indent:1em" | 203mPt
| colspan="3" style="text-indent:2em" | 3100#&nbsp;keV
| 641(55)&nbsp;μdtk
| IT
| 203Pt
| 33/2+#
|
|
|-
| 204Pt
| style="text-align:right" | 78
| style="text-align:right" | 126
| 203,98076(200)#
| 10,3(14)&nbsp;dtk
| β−
| 204Au
| 0+
|
|
|-
| style="text-indent:1em" | 204m1Pt
| colspan="3" style="text-indent:2em" | 1995,1(0,7)&nbsp;keV
| 5,5(7)&nbsp;μdtk
| IT
| 204Pt
| (5-)
|
|
|-
| style="text-indent:1em" | 204m2Pt
| colspan="3" style="text-indent:2em" | 2035(23)&nbsp;keV
| 55(3)&nbsp;μdtk
| IT
| 204Pt
| (7-)
|
|
|-
| style="text-indent:1em" | 204m3Pt
| colspan="3" style="text-indent:2em" | 3193(23)&nbsp;keV
| 146(14)&nbsp;ndtk
| IT
| 204Pt
| (10+)
|
|

## Referensi

* Massa isotop dari:
**
* Komposisi isotop dan massa atom standar dari:
**
**
* Data waktu paruh, spin, dan isomer dipilih dari sumber-sumber berikut.
**
**
**