鉑（原子量：195084 9）有 5 個穩定同位素以及 1 個天然放射性同位素。 圖表 165Pt styletextalignright 78 styletextalignright 87 α 161Os 166Pt styletextalignright 78 styletextalignright 88 16599486 54 α 162Os 0 167Pt styletextalignright 78 styletextalignright 89 16699298 44 11 2 ms α 163Os 72 rowspan2168Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 90 rowspan216798815 22 rowspan2200 18 ms 164Os rowspan20 rowspan2 rowspan2 （不常見） 168Ir rowspan2169Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 91 rowspan216898672 22 rowspan237 15 ms 165Os rowspan232 rowspan2 rowspan2 （不常見） 169Ir rowspan2170Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 92 rowspan2169982495 20 rowspan2140 2 ms 98 166Os rowspan20 rowspan2 rowspan2 2 170Ir rowspan2171Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 93 rowspan217098124 9 rowspan251 2 ms 99 167Os rowspan232 rowspan2 rowspan2 1 171Ir rowspan2172Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 94 rowspan2171977347 14 rowspan2984 24 ms 77 168Os rowspan20 rowspan2 rowspan2 23 172Ir rowspan2173Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 95 rowspan217297644 6 rowspan2365 7 ms 84 169Os rowspan252 rowspan2 rowspan2 16 173Ir rowspan2174Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 96 rowspan2173972819 13 rowspan20889 17 s 83 170Os rowspan20 rowspan2 rowspan2 17 174Ir rowspan2175Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 97 rowspan2174972421 20 rowspan2253 6 s 64 171Os rowspan252 rowspan2 rowspan2 36 175Ir rowspan2176Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 98 rowspan2175968945 15 rowspan2633 15 s 62 176Ir rowspan20 rowspan2 rowspan2 38 172Os rowspan2177Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 99 rowspan2176968469 16 rowspan2106 4 s 944 177Ir rowspan252 rowspan2 rowspan2 56 173Os styletextindent1em 177mPt colspan3 styletextindent2em 1474 4 keV 22 3 µs 12 rowspan2178Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 100 rowspan2177965649 12 rowspan2211 6 s 923 178Ir rowspan20 rowspan2 rowspan2 77 174Os rowspan2179Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 101 rowspan2178965363 10 rowspan2212 4 s 9976 179Ir rowspan212 rowspan2 rowspan2 024 175Os rowspan2180Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 102 rowspan2179963031 12 rowspan256 2 s 997 180Ir rowspan20 rowspan2 rowspan2 03 176Os rowspan2181Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 103 rowspan2180963097 16 rowspan2520 22 s 9993 181Ir rowspan212 rowspan2 rowspan2 0074 177Os rowspan2182Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 104 rowspan2181961171 17 rowspan222 1 min 9996 182Ir rowspan20 rowspan2 rowspan2 038 178Os rowspan2183Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 105 rowspan2182961597 17 rowspan265 10 min 9999 183Ir rowspan212 rowspan2 rowspan2 0096 179Os rowspan3 styletextindent1em 183m1Pt rowspan3 colspan3 styletextindent2em 3450 8 keV rowspan343 5 s 9999 183Ir rowspan372 rowspan3 rowspan3 4104 179Os IT 183Pt styletextindent1em 183m2Pt colspan3 styletextindent2em 19568 11 keV 150 ns 92 rowspan2184Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 106 rowspan2183959922 19 rowspan2173 2 min 9999 184Ir rowspan20 rowspan2 rowspan2 00169 180Os styletextindent1em 184mPt colspan3 styletextindent2em 18394 16 keV 101 5 ms IT 184Pt 8 rowspan2185Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 107 rowspan218496062 4 rowspan2709 24 min 9999 185Ir rowspan292 rowspan2 rowspan2 005 181Os rowspan2 styletextindent1em 185mPt rowspan2 colspan3 styletextindent2em 1034 2 keV rowspan2330 8 min 98 185Ir rowspan212 rowspan2 rowspan2 2 181Os rowspan2186Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 108 rowspan2185959351 23 rowspan2208 5 h 9999 186Ir rowspan20 rowspan2 rowspan2 14104 182Os 187Pt styletextalignright 78 styletextalignright 109 18696059 3 235 3 h 187Ir 32 rowspan2188Pt rowspan2 styletextalignright 78 rowspan2 styletextalignright 110 rowspan2187959395 6 rowspan2102 3 d 9999 188Ir rowspan20 rowspan2 rowspan2 26105 184Os 189Pt styletextalignright 78 styletextalignright 111 188960834 12 1087 12 h 189Ir 32 styletextindent1em 189m1Pt colspan3 styletextindent2em 17280 6 keV 464 25 ns 92 styletextindent1em 189m2Pt colspan3 styletextindent2em 1916 4 keV 143 5 µs 132 190Pt styletextalignright 78 styletextalignright 112 189959932 6 497 161011 y 186Os 0 14 1104 191Pt styletextalignright 78 styletextalignright 113 190961677 5 2862 7 d 191Ir 32 styletextindent1em 191m1Pt colspan3 styletextindent2em 10067 2 keV 1 µs 92 styletextindent1em 191m2Pt colspan3 styletextindent2em 14904 2 keV 95 5 µs 132 192Pt styletextalignright 78 styletextalignright 114 1919610380 27 colspan3 aligncenter 觀測上穩定 Believed to undergo decay to 188Os with a halflife over 4701015 years 0 000782 7 193Pt styletextalignright 78 styletextalignright 115 1929629874 18 50 6 y 193Ir 12 styletextindent1em 193mPt colspan3 styletextindent2em 14978 4 keV 433 3 d IT 193Pt 132 194Pt styletextalignright 78 styletextalignright 116 1939626803 9 colspan3 aligncenter 觀測上穩定 Believed to undergo decay to 190Os 0 032967 99 195Pt styletextalignright 78 styletextalignright 117 1949647911 9 colspan3 aligncenter 觀測上穩定 Believed to undergo decay to 191Os 12 033832 10 styletextindent1em 195mPt colspan3 styletextindent2em 25930 8 keV 4010 5 d IT 195Pt 132 196Pt styletextalignright 78 styletextalignright 118 1959649515 9 colspan3 aligncenter 觀測上穩定 Believed to undergo decay to 192Os 0 025242 41 197Pt styletextalignright 78 styletextalignright 119 1969673402 9 198915 19 h 197Au 12 rowspan2 styletextindent1em 197mPt rowspan2 colspan3 styletextindent2em 39959 20 keV rowspan29541 18 min IT 967 197Pt rowspan2132 rowspan2 rowspan2 33 197Au 198Pt styletextalignright 78 styletextalignright 120 197967893 3 colspan3 aligncenter 觀測上穩定 Believed to undergo decay to 194Os or double decay to 198Hg with a halflife over 3201012 years 0 007163 55 199Pt styletextalignright 78 styletextalignright 121 198970593 3 3080 21 min 199Au 52 styletextindent1em 199mPt colspan3 styletextindent2em 424 2 keV 136 4 s IT 199Pt 132 200Pt styletextalignright 78 styletextalignright 122 199971441 22 125 3 h 200Au 0 201Pt styletextalignright 78 styletextalignright 123 20097451 5 25 1 min 201Au 52 202Pt styletextalignright 78 styletextalignright 124 20197574 32 44 15 h 202Au 0 參考文獻 Isotope masses from Ame2003 Atomic Mass Evaluation by G Audi AH Wapstra C Thibault J Blachot and O Bersillon in Nuclear Physics A729 2003 Isotopic compositions and standard atomic masses from Atomic weights of the elements Review 2000 IUPAC Technical Report Pure Appl Chem Vol 75 No 6 pp 683800 2003 and Atomic Weights Revised 2005 Halflife spin and isomer data selected from these sources Editing notes on this articles talk page Audi Bersillon Blachot Wapstra The Nubase2003 evaluation of nuclear and decay properties Nuc Phys A 729 pp 3128 2003 National Nuclear Data Center Brookhaven National Laboratory Information extracted from the NuDat 21 database retrieved Sept 2005 David R Lide ed Norman E Holden in CRC Handbook of Chemistry and Physics 85th Edition online version CRC Press Boca Raton Florida 2005 Section 11 Table of the Isotopes Pt Category 鉑