Chemistry, 11.06.2020 22:57, nurmukhammada

The decay of a radioactive material is monitored using a Geiger counter. At the start, the count rate is 2000 decays/minute. Four hours later the decay rate is 500 counts/min. What is the half-life of the material?

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The decay of a radioactive material is monitored using a Geiger counter. At the start, the count rat...