uranium-232 has a half-life of 68.8 years. after 344.0 years, how much uranium-232 will remain from a…

uranium-232 has a half-life of 68.8 years. after 344.0 years, how much uranium-232 will remain from a 100.0-g sample?\n1.56 g\n3.13 g\n5.00 g\n20.0 g

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