UNIVERSE
SOLAR SYSTEM FORMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What percentage of a radioactive element would be left after 2 half-lives?
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80%
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50%
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25%
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10%
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Explanation:
Detailed explanation-1: -Hence, after 5 half lives the quantity that would remain would be: 321 which is 3. 125%
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