Half-life comparison
Substance A Substance B Substance C
Original amount 200 g 400 g 500 g
½ life 6 days 5 days 3 days
From the table of data, substance C will have the least of the original amount remaining after 30 days even though it started with the most.
What is the best explanation for this answer?
A) Substances A and B are not as radioactive since they have longer half-lives.
B) The states of matter for substances A & B are more volatile than substance C.
C) Substances that start with large amounts will always decay at faster rates.
D) Substance C goes through a significantly larger amount of half-lives compared to the other substances.
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