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Radium-226, a common isotope of radium, has a half-life of 1,620 years. How many grams of a 120-gram sample will remain after t years?
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Radium-226, a common isotope of radium, has a half-life of 1,620 years. How many grams of a 120-gram sample will remain after t years?

User Evgeny Veretennikov
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2 Answers

2 votes

Answer: it's c, the next answer is 115.

User IMParasharG
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6 votes

Answer: The answer is D, the next next one is 115.

Explanation:

User Nestor Milyaev
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