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Ilia_Sergeevich [38]
3 years ago
12

What will be the percentage of potassium-40 remaining after 3.9 billion years?

Biology
1 answer:
Papessa [141]3 years ago
5 0
Potassium-40 has a half life of 1.251×billion<span> years</span><span>. To determine the percentage potassium-40 remaining after 3.9 billion years, divide
3.9 by 1.251, = 3.12.

This is the number of times the original amount of potassium-40 reduces by 50%. The remaining percentage is therefore 100%/(3.12 * 2) = 16.03%.</span>
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