1.

The half-life of a radionuclide is 69.3 minutes. What is its average life (in minutes)

A.                 100        
B.                 \[{{10}^{-2}}\]
C.                 \[{{(69.3)}^{-1}}\]
D.                 \[0.693\times 69.3\]
Answer» B.                 \[{{10}^{-2}}\]


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