You have 32 grams of a radioactive kind of gold. If its half-life is 3 days, how much will be left after 6 days?
2 answers:
D. 8 grams
The equation
Ending Amount = Beginning Amount / 2(time / half-life)
32/2^(6/3)
32/2^2
32/4
=8
Answer:
d. 8 grams.
Step-by-step explanation:
After 1 half life there is 1/2 * 32 = 16 grams left , after another half-life ( at 6 days) there is 1/2 * 16 = 8 grams left.
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