Chemistry, 17.12.2020 01:20 jasonoliva13

Uranium-232 has a half-life of 68.9 years. A sample from 206.7 years ago contains 1.40 g of uranium-232. how much uranium was originally present?

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Uranium-232 has a half-life of 68.9 years. A sample from 206.7 years ago contains 1.40 g of uranium-...