Talk:Isotopes of dysprosium

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The last beta-stable nuclide of odd mass number with N/Z = 4/3
154Dy is the last beta-nuclide such that N:Z = 4:3. 7n3nX is beta stable for n = 1, even numbers from 10 to 18 and 22 (not primordial for n = 22). Cristiano Toàn (talk) 01:06, 23 February 2024 (UTC) For n=10 we have 70Zn, this nuclide is predicted to undergo double beta decay to 70Ge For n=14 we have 98Mo, this nuclide is predicted to undergo double beta decay to 98Ru For n=18 we have 126Xe, this nuclide is predicted to undergo double electron capture to 126Te

Possible alpha decay of several isotopes of dysprosium
According to, several isotopes of dysprosium should have an alpha decay half-life at the order of:

156Dy: 1024 years (note that the alpha decay energy is 1.7530 MeV, which is lower than 2.2044 MeV of its alpha product 152Gd, 1.9868 MeV of its double alpha product 148Sm and 1.9032 MeV of its triple alpha product 144Nd). This link predicts 2.2×1024 years. Alpha decay could be non-ignorable compared to double beta: Assuming that logT2β = A logQ2β + B and using the trend shown in, its double beta decay half-life should be at the order of 1020 years;

158Dy: 1058 years (note that the alpha decay energy is 0.8737 MeV, which is lower than 0.9203 MeV of its alpha product 154Gd, 1.4498 MeV of its double alpha product 150Sm, 1.1824 MeV of its triple alpha product 146Nd and 1.3035 MeV of its quadruple alpha product 142Ce);

160Dy: 10105 years;

161Dy: 10129 years;

162Dy: 10304 years.

According to, several isotopes of dysprosium should have a partial alpha decay half-life at the order of:

147Dy (N = 81): 1023 years;

148Dy (N = 82): 1025 years;

149Dy (N = 83): 109 years;

155Dy (N = 89): 1010 years (note that the alpha decay energy is 2.61 MeV, which is even slightly lower than 2.65 MeV of its alpha product 151Gd). 129.104.241.214 (talk) 00:41, 28 December 2023 (UTC)