Which of the following samples would have the greatest amount remaining after 28 days? Options: A . &nbsp5g of Au-198 B . &nbsp10g of I-131 C . &nbsp5g of P-32 D . &nbsp10g of Rn-222

Which of the following samples would have the greatest amount remaining after 2

Question

Which of the following samples would have the greatest amount remaining after 28 days?

Options:

A . 5g of Au-198

B . 10g of I-131

C . 5g of P-32

D . 10g of Rn-222

Answer: Option C

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