Hypothetical stable isotope of Promethium?

AI Thread Summary
The discussion centers on the theoretical possibility of creating an artificial stable isotope of Promethium, which currently has no stable isotopes. Promethium-147 is noted for its semi-stability, with a half-life of 2.6234 years, but participants clarify that no isotope of Promethium is truly stable. The conversation highlights the limitations of chemical processes in altering nuclear properties, emphasizing that changing the fundamental physics of the element is beyond human capability. Speculative ideas, such as those proposed by Ray Kurzweil regarding advanced technologies like femtotech, are mentioned but ultimately deemed impractical for creating stable isotopes of Promethium.
Maximum7
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TL;DR Summary
Discussing theoretical chemistry and what would it take to make artificial Promethium
Say one was to create an artificial stable isotope of Promethium as it has predicted applicable properties. What would it’s number have to be? I know Promethium-147 is semi-stable.
 
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No isotope of promethium is stable.
 
Vanadium 50 said:
No isotope of promethium is stable.
I’m aware. I was asking how; if they could make an artificial one. If it’s completely impossible fine; but I was thinking speculatively. Ray Kurzweil often said femtotech could create a new periodic table.
 
Maximum7 said:
Summary: Discussing theoretical chemistry and what would it take to make artificial Promethium

I know Promethium-147 is semi-stable.
There is nothing that one could do 'chemically' to change the nuclear properties of a nucleus.

I would not consider 147Pm with a half-life of 2.6234 y as being "semi-stable", nor 146Pm (half life = 5.53 y), nor 145Pm (half life = 17.7(4) y).

As V50 indicated, there are no stable isotopes of Pm.

Nature would have to change its Physics, which is beyond the realm of humanity.
 

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