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The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? Correct Answer 1/8

The half life period of an isotope is 2 hours. After 6 hours 1/8 of the original amount, or 12.5% of the isotope will be left behind.

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