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Posted: **Tue May 17, 2022 6:13 am**

: Question 23 30 Question 23 Points 90st Is An Isotope Produced From Atmospheric Testing Of Nuclear Bombs If Nuclear Test 1 (7.65 KiB) Viewed 46 times

Question 23.30 Question 23 points 90st is an isotope produced from atmospheric testing of nuclear bombs. If nuclear testing was stopped in 1960, what percentage of radioactivity due to se remained in 2000. The half-life of 28.5 years