You have a sample of unknown medication that is radioactive. You believe you should be able to identify the medication if you can deduce it's half life. You measure it's initial activity as 1.14e+06 Bq. 11.1 hours later you measure it's activity as 6.60e+05Bq.  a) what is the half life of this unknown sample b) how many nuclides are present when the activity is 6.60e+05Bq?

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