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3 years ago

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Americium-241 is a radioactive substance used in smoke detectors. The half life of americium is 432 years. If a smoke detector i

nitially contains 1 gram of Americium 241, how much will remain in 432 years? A) 0.5g B) 1.0g C) 1.5g D) 2.0g

1 answer:

aksik [14]3 years ago

7 0

<span>The half life of americium is 432 years. That means that after 432 years only half(1/2) of initial amount will be left.
If we had 1 g, then after 432 years we will have only half of it.
1g*1/2=1/2 g=0.5 g
Answer is </span><span>A) 0.5g</span>

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