Talk:Isotopes of erbium

Lose the column "decay energy"

The list doesn't have "decay energy"! — Preceding unsigned comment added by 59.126.202.81 (talk) 16:03, 22 July 2012 (UTC)

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Possible alpha decay of several isotopes of erbium

According to [1], several isotopes of erbium should have a partial alpha decay half-life at the order of:

¹⁴⁹Er (N = 81): 10¹⁹ years;

¹⁵⁰Er (N = 82): 10¹⁶ years;

¹⁵¹Er (N = 83): 10⁵ years;

¹⁵⁷Er (N = 89): 10⁶ years;

¹⁵⁸Er (N = 90): 10¹¹ years (note that the alpha decay energy is only 2.67 MeV, which is lower than 2.95 MeV of its alpha product ¹⁵⁴Dy and 2.81 MeV of its double alpha product ¹⁵⁰Gd, and not much higher then 2.53 MeV of its triple alpha product ¹⁴⁶Sm), meaning that the alpha-decay probability is only at the order of 10^-13%.

Among the 26 isomers of erbium, only 4 show decay mode other than isomer transition?

This is amazing. There are 26 isomers listed, and the sole decay mode is isomer transition for all of them except ^145mEr, ^147mEr, ^149m1Er and ^151m1Er. 129.104.241.214 (talk) 03:48, 3 December 2023 (UTC)

Possible double beta decay of ¹⁶⁴Er

¹⁶⁴Er has a theoretical double beta decay energy of 23.723 keV, which is lowest double beta decay energy I can recall. Assuming that logT^2β = A logQ^2β + B and using the trend shown in [2], the double beta half-life ¹⁶⁴Er should be at the order of 10³⁷ years. It is likely that its alpha decay is not ignorable compared to double beta decay: [3] gives the theoretical half-life of double beta decay at the order of 10⁴⁰ years. 129.104.241.214 (talk) 11:21, 29 January 2024 (UTC)

Can you calculate the theoretical half-life of double beta decay of Zinc-64 & Zinc-70 Cristiano Toàn (talk) 10:53, 2 February 2024 (UTC)

https://doi.org/10.1016/j.nuclphysa.2023.122628 gives that the double β- half-life ⁷⁰Zn should be around 1.050×10²³ years. As for ⁶⁴Zn, there are fewer theories available for double EC, and I could not find any explicit prediction (but https://doi.org/10.3390/universe10020098 should be useful, though). 129.104.241.193 (talk) 21:10, 28 April 2024 (UTC)