edit

Hello fellow Wikipedians,

I have just modified 2 external links on Isotopes of zinc. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 14:23, 15 April 2017 (UTC)Reply

edit

Hello fellow Wikipedians,

I have just modified one external link on Isotopes of zinc. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 14:59, 17 November 2017 (UTC)Reply

The decay products listed for Zn-65

edit

The decay modes listed for Zn-65 in the two different tables on this page are conflicting - I couldn't tell you what it should be without some research, but I'm sure the person who manages those tables could!

(This page says decay mode for Zn-65 is both beta and gamma: https://ehs.princeton.edu/laboratory-research/radiation-safety/radioactive-materials/radioisotope-fact-sheets/zinc-65) SCPL (talk) 18:25, 6 July 2023 (UTC)Reply

@Sara Prueitt: Good observation. The correct decay mode for 65Zn, as given in {{NUBASE2020}}, is positron emission. While this process can include gamma rays, there is no gamma decay without beta decay, as only the ground states of 65Zn and its decay product 65Cu are involved. I fixed the top-right table ({{Infobox zinc isotopes}}) to reflect the correct decay modes. Complex/Rational 20:29, 6 July 2023 (UTC)Reply

Why is the production of 60Zn endothermic?

edit

Mass of 4He + 56Ni = 4.002603254130 + 55.942132 = 59.944735

Mass of 60Zn = 59.941827, which is smaller? 129.104.241.214 (talk) 21:15, 25 October 2023 (UTC)Reply

You are correct, it is exothermic. And adding further alphas is actually exothermic all the way to 100Sn. The problem is rather that it is not exothermic enough: the amount of energy released drops sharply after 56Ni, and addition of further alphas cannot effectively compete with photodisintegration. Double sharp (talk) 09:00, 13 December 2023 (UTC)Reply

Isotopes of zinc have exceptionally high beta decay energy

edit
Even-even nuclides
Nuclide A Z N Decay mode Qβ (keV)
56Cr 56 24 32 β- 1628.46
62Zn 62 30 32 β+ 1626.2
140Ba 140 56 84 β- 1049.66
208Po 208 84 124 β+ 1400.3
Odd mass nuclides
Nuclide A Z N Decay mode Qβ (keV)
65Zn 65 30 35 β+ 1351.86
69Zn 69 30 39 β- 909.78
95Nb 95 41 54 β- 925.591
143Pr 143 59 84 β- 933.95

And also, the energy differences between the isobaric pairs 64Ni-64Zn (1095.28 keV) and 70Zn-70Ge (998.46 keV) are quite large, compared with other even-even isobaric pairs that surrounds an odd neutron number with no beta-stable isotones and an odd atomic number with two beta-stable isotopes (like 432.13 keV for 36S-36Ar); see the table of Talk:Double beta decay. 129.104.241.214 (talk) 10:03, 19 February 2024 (UTC)Reply