Science
posted by Kalie .
What happens to the mass of a sample containing a radioactive element during its halflife?
A. The mass decreases by half.
B. The amount of mass is doubled.
C. Eventually there is no mass at all.
D. The mass remains the same.

Science 
bobpursley
Of course, the mass remains the same for practical purposes. During the release of energy, a very tiny portion of mass is converted to energy, but that mass is extremelyl small, and cannot be determined by ordinary means.
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