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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Related Book For
Chemistry For Engineering Students
ISBN: 9780357026991
4th Edition
Authors: Lawrence S. Brown, Tom Holme
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