Mathematics, 22.07.2021 16:40, stressedmolly632

A Geiger counter registers a count rate of 4,000 counts per minute from a sample of a radioisotope. Twelve minutes later, the count rate is 1,000 counts per minute. What is the half-life of the radioisotope

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A Geiger counter registers a count rate of 4,000 counts per minute from a sample of a radioisotope....