Talk:Isotopes of barium
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Barium 112?[edit]
The article on isotopes of xenon briefly mentions barium-112 as the "heaviest nuclide with equal numbers of protons and neutrons". It isn't in the Ba article; maybe it was discovered recently, or maybe it isn't confirmed and the article on isotopes of Xe needs fixing. Can someone fix this? It's beyond my level of expertise. Oaklandguy (talk) 05:05, 17 September 2017 (UTC)
- I found a reference on it, but it requires subscription to access: https://link.springer.com/chapter/10.1007/978-3-540-70609-0_115. –LaundryPizza03 (dc̄) 23:51, 31 May 2018 (UTC)
Possible alpha decay of 140Ba[edit]
The following table is made according to the trend shown in [1] as well as the Geiger-Nuttall law.
| n | 5n2nX | Alpha decay energy (MeV) | Possible order of theoretical alpha decay half-life |
|---|---|---|---|
| 27 | 135Xe | Alpha stable | |
| 28 | 140Ba | 0.74 | 1042 yr |
| 29 | 145Ce | 0.20 | 10118 yr |
| 30 | 150Nd | Alpha stable | |
| 31 | 155Sm | Alpha stable | |
| 32 | 160Gd | Alpha stable | |
| 33 | 165Dy | Alpha stable | |
| 34 | 170Er | 0.05 | 10408 yr |
| 35 | 175Yb | 0.60 | 1084 yr |
| 36 | 180Hf | 1.29 | 1045 yr |
| 37 | 185W | 1.59 | 1046 yr |
| 38 | 190Os | 1.38 | 1047 yr |
| 39 | 195Pt | 1.19 | 1064 yr |
| 40 | 200Hg | 0.72 | 1095 yr |
| 41 | 205Pb | 1.47 | 1051 yr |
2A04:CEC0:1011:B1F1:C5E3:F416:5CD7:1B03 (talk) 23:58, 13 November 2023 (UTC)
When NUBASE2020 lists only an upper limit for the intensity of a decay mode, has the process been observed?[edit]
NUBASE2020 says 12C<0.0034 for 114Ba.
In the explanation there is a sentence "α=? means that the α-decay is observed, but its intensity is not experimentally known". It does not explain for "(decay mode)<(upper limit)". 129.104.241.214 (talk) 14:38, 24 February 2024 (UTC)