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Author Question: The heaviest known isotope of hydrogen is called tritium, . It decays by beta emission, and has a ... (Read 75 times)

Aimless0988

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on: Nov 5, 2023

Question 1

The half-life of 90Sr is 29 years.  What fraction of the atoms in a sample of 90Sr would remain 175 years later?
◦ 0.17
◦ 0.12
◦ 0.062
◦ 0.015
◦ 0.50

Question 2

The heaviest known isotope of hydrogen is called tritium, .  It decays by beta emission, and has a half-life of 12.3 years.  What fraction of a tritium sample will remain after 5.20 years?
◦ 0.0210
◦ 0.746
◦ 3.41
◦ 0.254
◦ 0.423
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by Aimless0988 on Nov 5, 2023

athenaheim

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Reply #1 on: Nov 5, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Aimless0988

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Reply 2 on: Nov 5, 2023
Excellent

xiazhe

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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