Question: True or False: If a 2 0 kg brick is made entirely of radioactive atoms of half - life 5 days, at the end of

True or False: If a 20 kg brick is made entirely of radioactive atoms of half-life 5 days, at the end of 5 days this brick will have a mass of 10 kg .
A. True
B. False
True or False: If a 2 0 kg brick is made entirely

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