It's Elemental

Platinum

Previous Element

(Platinum)

The Periodic Table of Elements

Next Element

(Mercury)

Mercury

Isotopes of the Element Gold

[Click for Main Data]

Most of the isotope data on this site has been obtained from the National Nuclear Data Center. Please visit their site for more information.

Naturally Occurring Isotopes

Mass NumberNatural AbundanceHalf-life
197100%STABLE

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
169No Data AvailableProton Emission (suspected)No Data Available
Alpha Decay (suspected)No Data Available
170286 microsecondsProton Emission89.00%
Alpha Decay11.00%
170m617 microsecondsProton Emission58.00%
Alpha Decay42.00%
17117 microsecondsProton Emission100.00%
Alpha DecayNo Data Available
171m1.02 millisecondsAlpha Decay54.00%
Proton Emission46.00%
17222 millisecondsAlpha Decay100.00%
Electron CaptureNo Data Available
Proton EmissionNo Data Available
172m7.7 millisecondsAlpha Decay100.00%
Proton Emission< 0.02%
Electron CaptureNo Data Available
17325 millisecondsAlpha Decay94.00%
Electron CaptureNo Data Available
Proton EmissionNo Data Available
173m14.0 millisecondsAlpha Decay92.00%
Proton EmissionNo Data Available
Electron CaptureNo Data Available
174139 millisecondsAlpha Decay> 0.00%
175No Data AvailableElectron Capture (suspected)No Data Available
Alpha Decay (suspected)No Data Available
175m156 millisecondsAlpha Decay94.00%
Electron Capture6.00%
176No Data AvailableNo Data AvailableNo Data Available
176m1.05 secondsAlpha DecayNo Data Available
Electron CaptureNo Data Available
176m11.36 secondsNo Data AvailableNo Data Available
1771.53 secondsAlpha Decay40.00%
Electron CaptureNo Data Available
177m1.00 secondsAlpha Decay66.00%
Electron CaptureNo Data Available
1782.6 secondsElectron Capture<= 60.00%
Alpha Decay>= 40.00%
1797.1 secondsElectron Capture78.00%
Alpha Decay22.00%
1808.1 secondsAlpha Decay>= 1.80%
Electron Capture<= 98.20%
18113.7 secondsElectron Capture97.30%
Alpha Decay2.70%
18215.5 secondsElectron Capture99.87%
Alpha Decay0.13%
18342.8 secondsElectron Capture99.45%
Alpha Decay0.55%
18420.6 secondsElectron Capture100.00%
Alpha Decay<= 0.02%
184m47.6 secondsAlpha Decay<= 0.02%
Electron Capture70.00%
Isomeric Transition30.00%
1854.25 minutesElectron Capture99.74%
Alpha Decay0.26%
185m6.8 minutesElectron Capture< 100.00%
Isomeric TransitionNo Data Available
18610.7 minutesElectron Capture100.00%
Alpha Decay8.0×10-4 %
1878.3 minutesElectron Capture100.00%
Alpha Decay3.0×10-3 %
187m2.3 secondsIsomeric Transition100.00%
1888.84 minutesElectron Capture100.00%
18928.7 minutesElectron Capture100.00%
Alpha Decay< 3.0×10-5 %
189m4.59 minutesElectron Capture100.00%
19042.8 minutesElectron Capture100.00%
Alpha Decay< 1.0×10-6 %
190m125 millisecondsIsomeric Transition100.00%
1913.18 hoursElectron Capture100.00%
191m0.92 secondsIsomeric Transition100.00%
1924.94 hoursElectron Capture100.00%
192m29 millisecondsIsomeric Transition100.00%
192m1160 millisecondsIsomeric Transition100.00%
19317.65 hoursElectron Capture100.00%
193m3.9 secondsIsomeric Transition99.97%
Electron Capture~ 0.03%
19438.02 hoursElectron Capture100.00%
194m600 millisecondsIsomeric Transition100.00%
194m1420 millisecondsIsomeric Transition100.00%
195186.098 daysElectron Capture100.00%
195m30.5 secondsIsomeric Transition100.00%
1966.1669 daysElectron Capture93.00%
Beta-minus Decay7.00%
196m8.1 secondsIsomeric Transition100.00%
196m19.6 hoursIsomeric Transition100.00%
197STABLE--
197m7.73 secondsIsomeric Transition100.00%
1982.6948 daysBeta-minus Decay100.00%
198m2.272 daysIsomeric Transition100.00%
1993.139 daysBeta-minus Decay100.00%
199m0.44 millisecondsIsomeric Transition100.00%
20048.4 minutesBeta-minus Decay100.00%
200m18.7 hoursIsomeric Transition16.00%
Beta-minus Decay84.00%
20126.0 minutesBeta-minus Decay100.00%
20228.4 secondsBeta-minus Decay100.00%
20360 secondsBeta-minus Decay100.00%
20439.8 secondsBeta-minus Decay100.00%
20532.5 secondsBeta-minus Decay100.00%
205m6 secondsBeta-minus DecayNo Data Available
Isomeric TransitionNo Data Available
206> 300 nanosecondsBeta-minus DecayNo Data Available
207> 300 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
208> 300 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
209> 300 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
210> 300 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available