Chemistry, 25.02.2021 23:50, maddihamidou

The half-life of isotope XX is 2.0 years. How many years would it take for a 7.0 mg sample of XX to decay and have only 0.4375 mg of it remain?

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The half-life of isotope XX is 2.0 years. How many years would it take for a 7.0 mg sample of XX to...