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Which chemical elements have no stable isotopes?

Question #127138. Asked by Gil_Galad.
Last updated Oct 07 2016.
Originally posted Oct 10 2012 1:30 AM.

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looney_tunes star
Answer has 13 votes
Currently Best Answer
looney_tunes star
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19 year member
3319 replies avatar

Answer has 13 votes.

Currently voted the best answer.
"The elements without any stable isotopes are technetium (atomic number 43), promethium (atomic number 61), and all observed elements with atomic numbers greater than 82." (82 is Lead)

link https://en.wikipedia.org/wiki/Chemical_element#Isotopes
Response last updated by Terry on Oct 07 2016.
Oct 10 2012, 1:43 AM
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