The half-life of 131I is 8.04 days.(d) Find the number of 131I nuclei necessary to produce a sample with an activity of 0.550 ?Ci.(e) Suppose the activity of a certain 131I sample is 6.90 mCi at a given time. Find the number of half-lives the sample goes through in 40.2 d and the activity at the end of that period. (Enter your answer for the number of half-lives to at least one decimal place.) half-lives mCi (d) Find the number of 131I nuclei necessary to produce a sample with an activity of 0.550 ?Ci.(e) Suppose the activity of a certain 131I sample is 6.90 mCi at a given time. Find the number of half-lives the sample goes through in 40.2 d and the activity at the end of that period. (Enter your answer for the number of half-lives to at least one decimal place.)- half lives-mCi

Iridium, from the given problem, has a half life of 8.04 days. Activity of a radioactive substance…

The half-life of 131I is 8.04 days. (d) Find the number of 131I nuclei necessary to produce a sample with an activity of 0.550 ?Ci. (e) Suppose the activity of a certain 131I sample is 6.90 mCi at a given time. Find the number of half-lives the sample goes through in 40.2 d and the activity at the end of that period. (Enter your answer for the number of half-lives to at least one decimal place.) half-lives mCi

The half-life of 131I is 8.04 days. (d) Find the number of 131I nuclei necessary to produce a sample with an activity of 0.550 ?Ci. (e) Suppose the activity of a certain 131I sample is 6.90 mCi at a given time. Find the number of half-lives the sample goes through in 40.2 d and the activity at the end of that period. (Enter your answer for the number of half-lives to at least one decimal place.) half-lives mCi

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Question

The half-life of ¹³¹I is 8.04 days.

(d) Find the number of ¹³¹I nuclei necessary to produce a sample with an activity of 0.550 ?Ci.

(e) Suppose the activity of a certain ¹³¹I sample is 6.90 mCi at a given time. Find the number of half-lives the sample goes through in 40.2 d and the activity at the end of that period. (Enter your answer for the number of half-lives to at least one decimal place.)

	half-lives
	mCi

(d) Find the number of ¹³¹I nuclei necessary to produce a sample with an activity of 0.550 ?Ci.

- half lives

-mCi

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