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Author Question: Approximately what mass of a 1.00 mg sample of 131I remains after 40.2 days? The half-life of 131I is 8.04 d. (Read 106 times)

jwb375

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Question 1

An isotope which has too high a neutron-proton ratio can gain stability by:
◦ beta emission
◦ K-capture
◦ proton emission
◦ gamma emission
◦ alpha emission

Question 2

Approximately what mass of a 1.00 mg sample of 131I remains after 40.2 days? The half-life of 131I is 8.04 d.
◦ 0.0313 mg
◦ 0.200 mg
◦ 0.0249 mg
◦ 0.0156 mg


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Marked as best answer by jwb375 on Jul 8, 2021

Sassygurl126

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jwb375

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Reply 2 on: Jul 8, 2021
:D TYSM


nothere

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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