Calcium-45 has a half-life of 162.7 days. if four half-lives have elapsed, how much time has passed?

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Chemistry

Shuttershy

8 December, 08:45

Calcium-45 has a half-life of 162.7 days. if four half-lives have elapsed, how much time has passed?

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Tamara Jennings · Answer 1

Half-life is the time required for a quantity to reduce to half its initial value. If four half-lives have elapsed for calcium-45, then it would be 4x162.7 = 650.8 days have passed. Hope this answers the question. Have a nice day. Feel free to ask more questions.