Possible error in IsotopeData (germanium-76 and selenium-82)?

[kia999 (Igor Kotelnikov)]

I found 2 isotopes in Wolfram database which are marked as unstable, but their lifetime is indicated as infinite (germanium-76 and selenium-82). The following chunck of code illustrates the issue:

g1 = Table[{{z, a} ,
IsotopeData[{z, a},
"BindingEnergy"],
IsotopeData[{z, a}, "Stable"], 
IsotopeData[{z, a}, "Lifetime"],
IsotopeData[{z, a},
"FullSymbol"], 
IsotopeData[{z, a}, "Name"] }, {z, 1, 118}, 
{a,  IsotopeData[#, "MassNumber"] & /@ IsotopeData[z]}] //
Flatten[#, 1] &; g1 // Length

Select[g1, #1[[1]] == {32, 76} &] Select[g1, #1[[1]] == {34, 82} &]

Is it an error of what?

Untitled-10.nb (7.08 KB)

[soberania (Estevao Teixeira)]

Hey, Igor, how are you?
I posted about something like that ( The 2016 Atomic Mass Evaluation (AME2016) data ). Isotope data is not updated. So, you can play but not work with it.

Ge76 and Se82 are stable

You can use the nuclear database: https://www.nndc.bnl.gov/nudat2/reCenter.jsp?z=34&n=48