If 25 mg of an initially 200. mg sample of bromine-74 is still active after 75 minutes,the half-life of bromine-74 is ________ minutes.

Name: If 25 mg of an initially 200. mg sample of bromine-74 is still active after 75 minutes,the half-life of bromine-74 is ________ minutes.
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The Answer of If 25 mg of an initially 200. mg sample of bromine-74 is still active after 75 minutes,the half-life of bromine-74 is ________ minutes.

If 25 Mg of an Initially 200