Timeline for Why are there only less than 120 elements out there ?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| May 9, 2018 at 16:25 | comment | added | Oscar Lanzi | The decay products are not all that common. They would need a "geological" or "cosmic" half-life to accumulate to "common" levels given the slow production rate from the long-lived progenitor. If you don't believe this try solving for the concentration of B if A -> B has a half-life of 5 billion yrs and B -> C has a half-life of 5 million yrs. | |
| May 9, 2018 at 13:50 | comment | added | matt_black | @OscarLanzi Had I said "anything that exists in nature" you would be right. What I actually said was "anything common in nature". I think I'm still right for reasonable definitions of "common". | |
| May 9, 2018 at 13:01 | comment | added | matt_black | @theenigma017 Well spotted. I meant nucleons. Now fixed. | |
| May 9, 2018 at 13:00 | history | edited | matt_black | CC BY-SA 4.0 |
typos nuclei-> nucleons
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| May 9, 2018 at 12:58 | comment | added | theenigma017 | 'Nuclei with even numbers of nuclei ' that sounds complex. :| | |
| May 9, 2018 at 12:56 | vote | accept | theenigma017 | ||
| May 9, 2018 at 12:24 | history | answered | matt_black | CC BY-SA 4.0 |