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Specialty Chemistry Forums => Nuclear Chemistry and Radiochemistry Forum => Topic started by: KatieMatt on May 06, 2013, 11:40:52 AM

Title: Why are Technetium and Promethium radioactive?
Post by: KatieMatt on May 06, 2013, 11:40:52 AM

Hi,
I always wondered about this strange fact, considering the non-radioactive neighbour elements. Do you know why exactly these two are radioactive? Or is it just coincidence? Or unexplicable?
Thanks for any answers!

Title: Re: Why are Technetium and Promethium radioactive?
Post by: Arkcon on May 06, 2013, 07:05:26 PM

This question gets asked on this forum once every few years. 

http://www.chemicalforums.com/index.php?topic=25090.msg133971#msg133971

http://www.chemicalforums.com/index.php?topic=7445.msg33575#msg33575

http://www.chemicalforums.com/index.php?topic=2031.msg8903#msg8903

See if those threads begin to solve it for you.