Iron-59 Has a Half-Life of 44 Days

question 35

Multiple Choice

Iron-59 has a half-life of 44 days.A radioactive sample has an activity of 0.64 mBq.What is the activity of the sample after 88 days?

• A)1.28 mBq
• B)0.64 mBq
• C)0.32 mBq
• D)0.16 mBq
• E)0080 mBq

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