![]() | This article is rated List-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||
|
Hey, I'd love to read more about these nuclear isomers - especially now that I know I actually own an extremely small quantity of the stuff - in capacitors, of course! I remember feeling pretty amazed when I first read about it not that long ago; even more surprised when I found out that the discovery was much longer ago (I guess it didn't make the news... ) Zaphraud ( talk) 05:18, 25 March 2011 (UTC)
Can someone add an explanation of why this nuclear isomer (or excited state) is so stable? I would guess that predicted to decay merely means here that the 3 decay modes are calculated to be exoenergetic, but that each one would violate some strong selection rule(s). Can someone point to a reference which says so and explains in more detail? Dirac66 ( talk) 20:26, 13 August 2012 (UTC)
I can't find a mechanism for creating Ta180m, why does any exist? And what is the mechanism? 32ieww ( talk) 02:42, 25 February 2017 (UTC) 32ieww ( talk) 02:42, 25 February 2017 (UTC)
Hello fellow Wikipedians,
I have just modified 2 external links on Isotopes of tantalum. 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).
Cheers.— InternetArchiveBot ( Report bug) 14:21, 15 April 2017 (UTC)
An editor has asked for a discussion to address the redirect Rarest isotope. Please participate in the redirect discussion if you wish to do so. Steel1943 ( talk) 22:03, 20 September 2019 (UTC)
If I've calculated correctly, Tantalum-180m is also energetically capable of alpha decay into Lutetium-176, another primordial isotope. That would only require the loss of two units of spin through gamma rays. Is there a reason this is forbidden? 2600:8803:B102:F900:ECB7:DA58:A0D2:99A4 ( talk) 22:54, 20 August 2023 (UTC)
According to [2], 156Ta should have a partial alpha decay half-life at the order of 103 seconds, corresponding to a probability at the order of 0.01%.
155Ta has similar decay energy as 167Ta, so its alpha decay half-life could be at the order of 103 years, corresponding to a probability at the order of 10-12%. 129.104.241.214 ( talk) 21:10, 28 January 2024 (UTC)
This request was placed in the article. I've moved it here because this is the place for questions/comments/etc. about the article. From User:SalvageInsaneeeee: NOTICE: Tantalum-180m is supposed to say 1.44x10^27 years, i just suck at wikitext also remove this when someone fixes my wikitext problem. Joyous! Noise! 23:47, 24 February 2024 (UTC)
"The very slow decay of 180mTa is attributed to its high spin (9 units) and the low spin of lower-lying states." Does the high spin of 180mTa really explain its stability? 212mBi also have a spin of 9−, but it's β− decay half-life is only 76 min. 129.104.241.218 ( talk) 21:42, 11 April 2024 (UTC)
![]() | This article is rated List-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||
|
Hey, I'd love to read more about these nuclear isomers - especially now that I know I actually own an extremely small quantity of the stuff - in capacitors, of course! I remember feeling pretty amazed when I first read about it not that long ago; even more surprised when I found out that the discovery was much longer ago (I guess it didn't make the news... ) Zaphraud ( talk) 05:18, 25 March 2011 (UTC)
Can someone add an explanation of why this nuclear isomer (or excited state) is so stable? I would guess that predicted to decay merely means here that the 3 decay modes are calculated to be exoenergetic, but that each one would violate some strong selection rule(s). Can someone point to a reference which says so and explains in more detail? Dirac66 ( talk) 20:26, 13 August 2012 (UTC)
I can't find a mechanism for creating Ta180m, why does any exist? And what is the mechanism? 32ieww ( talk) 02:42, 25 February 2017 (UTC) 32ieww ( talk) 02:42, 25 February 2017 (UTC)
Hello fellow Wikipedians,
I have just modified 2 external links on Isotopes of tantalum. 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).
Cheers.— InternetArchiveBot ( Report bug) 14:21, 15 April 2017 (UTC)
An editor has asked for a discussion to address the redirect Rarest isotope. Please participate in the redirect discussion if you wish to do so. Steel1943 ( talk) 22:03, 20 September 2019 (UTC)
If I've calculated correctly, Tantalum-180m is also energetically capable of alpha decay into Lutetium-176, another primordial isotope. That would only require the loss of two units of spin through gamma rays. Is there a reason this is forbidden? 2600:8803:B102:F900:ECB7:DA58:A0D2:99A4 ( talk) 22:54, 20 August 2023 (UTC)
According to [2], 156Ta should have a partial alpha decay half-life at the order of 103 seconds, corresponding to a probability at the order of 0.01%.
155Ta has similar decay energy as 167Ta, so its alpha decay half-life could be at the order of 103 years, corresponding to a probability at the order of 10-12%. 129.104.241.214 ( talk) 21:10, 28 January 2024 (UTC)
This request was placed in the article. I've moved it here because this is the place for questions/comments/etc. about the article. From User:SalvageInsaneeeee: NOTICE: Tantalum-180m is supposed to say 1.44x10^27 years, i just suck at wikitext also remove this when someone fixes my wikitext problem. Joyous! Noise! 23:47, 24 February 2024 (UTC)
"The very slow decay of 180mTa is attributed to its high spin (9 units) and the low spin of lower-lying states." Does the high spin of 180mTa really explain its stability? 212mBi also have a spin of 9−, but it's β− decay half-life is only 76 min. 129.104.241.218 ( talk) 21:42, 11 April 2024 (UTC)