The half-life of 237 Np is 2.14 10 6 years, and Earth is 4.54 10

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The half-life of 237Np is 2.14 × 106 years, and Earth is 4.54 × 109 years old. If there was some amount of 237Np present when Earth was formed, and no 237Np has been formed since, what fraction of the original 237Np remains today?

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Chemistry For Engineering Students

ISBN: 9780357026991

4th Edition

Authors: Lawrence S. Brown, Tom Holme

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