The half-life of cesium-137 is approximately 30 years. If an artifact initially contains 100 g of cesium, find a formula for the amount of cesium in the artifact at any time T. Hint: Use y -kT = Yoe Yo is the initial value and k is the decay constant. where –In(2) T y = 100e 30 Y = 100ekT y = 100e30T y = 30e100T

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