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Author Question: The half-life for electron capture for is 1.30 109 years. What percent of the original remains ... (Read 88 times)

lindiwe

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on: Mar 21, 2021

Question 1

The half-life for electron capture for is 1.3 billion years. What will be the / ratio in a rock that is 4.7 billion years old?

◦ 0.082
◦ 11
◦ 0.089
◦ 3.6
◦ 12

Question 2

The half-life for electron capture for is 1.30 × 109 years. What percent of the original remains after 3.31 × 109 years?

◦ 82.9%
◦ 17.1%
◦ 76.2%
◦ 23.8%
◦ 42.8%
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Marked as best answer by lindiwe on Mar 21, 2021

Bigfoot1984

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Reply #1 on: Mar 21, 2021
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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lindiwe

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Reply 2 on: Mar 21, 2021
YES! Correct, THANKS for helping me on my review

covalentbond

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Reply 3 on: Yesterday
Gracias!

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