A space rock contains 3.00 g of 14762Sm and 0.150 g of 14360Nd. 14762Sm a decays to

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A space rock contains 3.00 g of 14762Sm and 0.150 g of 14360Nd. 14762Sm a decays to 14360Nd with a half-life of 1.06 × 1011 yr. If the rock originally contained no 14360Nd, how old is it?
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Physics

ISBN: 978-0077339685

2nd edition

Authors: Alan Giambattista, Betty Richardson, Robert Richardson

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