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Anettt [7]
3 years ago
13

An isotope of cesium (cesium-137) has a half-life of 30 years. If 4.0 mg of cesium-137 decays over a period of 120 years, how ma

ny mg of cesium-137 would remain?
Advanced Placement (AP)
1 answer:
inna [77]3 years ago
5 0

Answer:

.,no entiendo ni mierda

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