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Chemistry, 01.03.2021 20:50 kitkattt1246

What is the half-life of Technetium-99 if a 200 gram sample decays to 50 grams in 639,000 years?

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What is the half-life of Technetium-99 if a 200 gram sample decays to 50 grams in 639,000 years?...

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