Изотопи на платината

Природната платина (<sub>78</sub>Pt) се состои од пет стабилни изотопи (<sup>192</sup>Pt, <sup>194</sup>Pt, <sup>195</sup>Pt, <sup>196</sup>Pt, <sup>19</sup> Pt) и еден многу долговечен (време на полураспад 4,83×10 <sup>11</sup> години) радиоизотоп (<sup>190</sup>Pt). Исто така, познати се 34 вештачки радиоизотопи, од кои најдолготрајниот е <sup>193</sup>Pt со време на полураспад од 50 години. Сите други изотопи имаат време на полураспад под една година, повеќето под еден ден. Сите изотопи на платината се или радиоактивни или набљудувачки стабилни, што значи дека се предвидува дека се радиоактивни, но не е забележано вистинско распаѓање. Платината-195 е најзастапениот изотоп.
1 Список на изотопите
<sup>165</sup>Pt, 78, 87, 164,99966(43)#, 370(180) μс, α, <sup>161</sup>Os, 7/2−#
<sup>166</sup>Pt, 78, 88, 165,99487(32)#, 294(62) μс, α, <sup>162</sup>Os, 0+
<sup>167</sup>Pt, 78, 89, 166,99275(33)#, 920(120) μс, α, <sup>163</sup>Os, 7/2−#
<sup>168</sup>Pt, 78, 90, 167,98818(16), 2,02(10) мс, α, <sup>164</sup>Os, 0+
β<sup>+</sup> ?, <sup>168</sup>Ir
<sup>169</sup>Pt, 78, 91, 168,98662(22)#, 6,99(9) мс, α, <sup>165</sup>Os, (7/2−)
β<sup>+</sup> ?, <sup>169</sup>Ir
<sup>170</sup>Pt, 78, 92, 169,982502(20), 13,93(16) мс, α, <sup>166</sup>Os, 0+
β<sup>+</sup> ?, <sup>170</sup>Ir
<sup>171</sup>Pt, 78, 93, 170,981249(87), 45,5(25) мс, α (86%), <sup>167</sup>Os, 7/2−
β<sup>+</sup> (14%), <sup>171</sup>Ir
<sup>171m</sup>Pt, 412,6(10) keV, 901(9) нс, IT, <sup>171</sup>Pt, 13/2+
<sup>172</sup>Pt, 78, 94, 171,977341(11), 97,6(13) мс, α (96%), <sup>168</sup>Os, 0+
β<sup>+</sup> (4%), <sup>172</sup>Ir
<sup>173</sup>Pt, 78, 95, 172,976450(68), 382(2) мс, α (86%), <sup>169</sup>Os, (5/2−)
β<sup>+</sup> (14%), <sup>173</sup>Ir
<sup>174</sup>Pt, 78, 96, 173,972820(11), 862(8) мс, α (74,9%), <sup>170</sup>Os, 0+
β<sup>+</sup> (25,1%), <sup>174</sup>Ir
<sup>175</sup>Pt, 78, 97, 174,972401(20), 2,43(4) с, α (64%), <sup>171</sup>Os, (7/2−)
β<sup>+</sup> (36%), <sup>175</sup>Ir
<sup>176</sup>Pt, 78, 98, 175,968938(14), 6,33(15) с, β<sup>+</sup> (60%), <sup>176</sup>Ir, 0+
α (40%), <sup>172</sup>Os
<sup>177</sup>Pt, 78, 99, 176,968470(16), 10,0(04) с, β<sup>+</sup> (94,3%), <sup>177</sup>Ir, 5/2−
α (5,7%), <sup>173</sup>Os
<sup>177m</sup>Pt, 147,5(4) keV, 2,35(4) μс, IT, <sup>177</sup>Pt, 1/2−
<sup>178</sup>Pt, 78, 100, 177,965649(11), 20,7(7) с, β<sup>+</sup> (92,3%), <sup>178</sup>Ir, 0+
α (7,7%), <sup>174</sup>Os
<sup>179</sup>Pt, 78, 101, 178,9653588(86), 21,2(4) с, β<sup>+</sup> (99,76%), <sup>179</sup>Ir, 1/2−
α (0,24%), <sup>175</sup>Os
<sup>180</sup>Pt, 78, 102, 179,963038(11), 56(3) с, β<sup>+</sup> (99,48%), <sup>180</sup>Ir, 0+
α (0,52%), <sup>176</sup>Os
<sup>181</sup>Pt, 78, 103, 180,963090(15), 52,0(22) с, β<sup>+</sup> (99,93%), <sup>181</sup>Ir, 1/2−
α (0,074%), <sup>177</sup>Os
<sup>181m</sup>Pt, 116,65(8) keV, >300 нс, IT, <sup>181</sup>Pt, 7/2−
<sup>182</sup>Pt, 78, 104, 181,961172(14), 2,67(12) мин, β<sup>+</sup> (99,962%), <sup>182</sup>Ir, 0+
α (0,038%), <sup>178</sup>Os
<sup>183</sup>Pt, 78, 105, 182,961596(15), 6,5(10) мин, β<sup>+</sup> (99,99%), <sup>183</sup>Ir, 1/2−
α (0,0096%), <sup>179</sup>Os
<sup>183m1</sup>Pt, 34,74(7) keV, 43(5) с, β<sup>+</sup> (96,9%), <sup>183</sup>Ir, 7/2−
IT (3,1%), <sup>183</sup>Pt
α ?, <sup>179</sup>Os
<sup>183m2</sup>Pt, 195,90(10) keV, >150 нс, IT, <sup>183</sup>Pt, 9/2+
<sup>184</sup>Pt, 78, 106, 183,959922(16), 17,3(2) мин, β<sup>+</sup>, <sup>184</sup>Ir, 0+
α (0,0017%), <sup>180</sup>Os
<sup>184m</sup>Pt, 1840,3(8) keV, 1,01(5) мс, IT, <sup>184</sup>Pt, 8−
<sup>185</sup>Pt, 78, 107, 184,960614(28), 70,9(24) мин, β<sup>+</sup>, <sup>185</sup>Ir, 9/2+
α (0,0050%), <sup>181</sup>Os
<sup>185m1</sup>Pt, 103,41(5) keV, 33,0(8) мин, β<sup>+</sup>, <sup>185</sup>Ir, 1/2−
<sup>185m2</sup>Pt, 200,89(4) keV, 728(20) нс, IT, <sup>185</sup>Pt, 5/2−
<sup>186</sup>Pt, 78, 108, 185,959351(23), 2,08(5) ч, β<sup>+</sup>, <sup>186</sup>Ir, 0+
α (1,4×10<sup>−4</sup>%), <sup>182</sup>Os
<sup>187</sup>Pt, 78, 109, 186,960617(26), 2,35(3) ч, β<sup>+</sup>, <sup>187</sup>Ir, 3/2−
<sup>187m</sup>Pt, 174,38(22) keV, 311(15) μс, IT, <sup>187</sup>Pt, 11/2+
<sup>188</sup>Pt, 78, 110, 187,9593975(57), 10,16(18) д, EC, <sup>188</sup>Ir, 0+
α (2,6×10<sup>−5</sup>%), ''<sup>184</sup>Os''<sup>189</sup>Pt, 78, 111, 188,960848(11), 10,87(12) ч, β<sup>+</sup>, <sup>189</sup>Ir, 3/2−
<sup>189m1</sup>Pt, 172,79(6) keV, 464(25) нс, IT, <sup>189</sup>Pt, 9/2−
<sup>189m2</sup>Pt, 191,6(4) keV, 143(5) μс, IT, <sup>189</sup>Pt, (13/2+)
<sup>190</sup>Pt, 78, 112, 189,95994982(71), 4,83(3)×10<sup>11</sup> г, α, ''<sup>186</sup>Os'', 0+, 1,2(2)×10<sup>−4</sup><sup>191</sup>Pt, 78, 113, 190,9616763(44), 2,83(2) д, EC, <sup>191</sup>Ir, 3/2−
<sup>191m1</sup>Pt, 100,663(20) keV, >1 μс, IT, <sup>191</sup>Pt, 9/2−
<sup>191m2</sup>Pt, 149,035(22) keV, 95(5) μс, IT, <sup>191</sup>Pt, 13/2+
<sup>192</sup>Pt, 78, 114, 191,9610427(28), Опсервациски стабилен, 0+, 0,00782(24)
<sup>192m</sup>Pt, 2172,37(13) keV, 272(23) нс, IT, <sup>192</sup>Pt, 10−
<sup>193</sup>Pt, 78, 115, 192,9629845(15), 50(6) г, EC, <sup>193</sup>Ir, 1/2−
<sup>193m</sup>Pt, 149,78(4) keV, 4,33(3) д, IT, <sup>193</sup>Pt, 13/2+
<sup>194</sup>Pt, 78, 116, 193,96268350(53), Опсервациски стабилен, 0+, 0,3286(41)
<sup>195</sup>Pt, 78, 117, 194,96479433(54), Опсервациски стабилен, 1/2−, 0,3378(24)
<sup>195m</sup>Pt, 259,077(23) keV, 4,010(5) д, IT, <sup>195</sup>Pt, 13/2+
<sup>196</sup>Pt, 78, 118, 195,96495465(55), Опсервациски стабилен, 0+, 0,2521(34)
<sup>197</sup>Pt, 78, 119, 196,96734303(58), 19,8915(19) ч, β<sup>−</sup>, <sup>197</sup>Au, 1/2−
<sup>197m</sup>Pt, 399,59(20) keV, 95,41(18) мин, IT (96,7%), <sup>197</sup>Pt, 13/2+
β<sup>−</sup> (3,3%), <sup>197</sup>Au
<sup>198</sup>Pt, 78, 120, 197,9678967(23), Опсервациски стабилен, 0+, 0,0734(13)
<sup>199</sup>Pt, 78, 121, 198,9705970(23), 30,80(21) мин, β<sup>−</sup>, <sup>199</sup>Au, 5/2−
<sup>199m</sup>Pt, 424(2) keV, 13,48(16) с, IT, <sup>199</sup>Pt, 13/2+
<sup>200</sup>Pt, 78, 122, 199,971445(22), 12,6(3) ч, β<sup>−</sup>, <sup>200</sup>Au, 0+
<sup>201</sup>Pt, 78, 123, 200,974513(54), 2,5(1) мин, β<sup>−</sup>, <sup>201</sup>Au, (5/2−)
<sup>202</sup>Pt, 78, 124, 201,975639(27), 44(15) ч, β<sup>−</sup>, <sup>202</sup>Au, 0+
<sup>202m</sup>Pt, 1788,5(4) keV, 141(7) μс, IT, <sup>202</sup>Pt, (7−)
<sup>203</sup>Pt, 78, 125, 202,97906(22)#, 22(4) с, β<sup>−</sup>, <sup>203</sup>Au, (1/2−)
<sup>203m1</sup>Pt, 1367(3)# keV, 12(5) с, β<sup>−</sup>, <sup>203</sup>Au, 13/2+#
IT ?, <sup>203</sup>Pt
<sup>203m2</sup>Pt, 1420(50)# keV, >100# нс, IT, <sup>203</sup>Pt, 27/2−#
<sup>203m3</sup>Pt, 2530(50)# keV, 641(55) нс, IT, <sup>203</sup>Pt, 33/2+#
<sup>204</sup>Pt, 78, 126, 203,98108(22)#, 10,3(14) с, β<sup>−</sup>, <sup>204</sup>Au, 0+
<sup>204m1</sup>Pt, 1995,1(07) keV, 5,5(7) μс, IT, <sup>204</sup>Pt, (5−)
<sup>204m2</sup>Pt, 2035(23) keV, 55(3) μс, IT, <sup>204</sup>Pt, (7−)
<sup>204m3</sup>Pt, 3193(23) keV, 146(14) нс, IT, <sup>204</sup>Pt, (10+)
<sup>205</sup>Pt, 78, 127, 204,98624(32)#, 2# с, β<sup>−</sup> ?, <sup>205</sup>Au, 9/2+#
<sup>206</sup>Pt, 78, 128, 205,99008(32)#, 500# мс, β<sup>−</sup> ?, <sup>206</sup>Au, 0+
β<sup>−</sup>n ?, <sup>205</sup>Au
<sup>207</sup>Pt, 78, 129, 206,99556(43)#, 600# мс, β<sup>−</sup> ?, <sup>207</sup>Au, 9/2+#
β<sup>−</sup>n ?, <sup>206</sup>Au
<sup>208</sup>Pt, 78, 130, 207,99946(43)#, 220# мс, β<sup>−</sup> ?, <sup>208</sup>Au, 0+
β<sup>−</sup>n ?, <sup>207</sup>Au