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SSSSS [86.1K]
3 years ago
12

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

Chemistry
2 answers:
enyata [817]3 years ago
7 0

Answer:

650.8 days

Explanation:

if the half-life is 162.7 days and the number of half-life days has elapsed 4 times.

To know the number of days that have passed we must multiply the half-life by 4

4(162.6)= 650.8 days

stiv31 [10]3 years ago
3 0
Half-life is the time required for a quantity to reduce to half its initial value. <span>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.</span>
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