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4 years ago

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A substance is on its fifth half-life. Which approximates the percentages of radioactive and stable isotopes, respectively? 96.9

%; 3.1% 3.1%; 96.9% 12.5%; 87.5% 87.5%; 12.5% Need an answer fast

1 answer:

garik1379 [7]4 years ago

5 0

Answer:

B

Explanation:

Edge 2020

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Explanation:

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-----------------------------------------

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Explanation:

<u>QuestIons</u>

(a) How long is five half-life

(b) How much radioactive strontium is left after five half-life

Given that:

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$= 100 \times( \dfrac{1}{2}) ^5$

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