Chemistry, 19.05.2021 21:20 cia196785920

All radioactive sources have a half-life. Which statement about the half-life of a source is correct?
O A. It is half the time it takes for an atom to decay
OB. It is half the time for the radioactive source to become safe
O
C. It is the time it takes the activity of the source to decrease by half
D. It is half the time it takes the activity of the source to decrease to zero

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