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The half life of a radioactive isotope 'X' is 20 years. It decays to another element 'Y' which is stable. The two elements 'X'
The half life of a radioactive isotope 'X' is 20 years. It decays to another element 'Y' which is stable. The two elements 'X' and 'Y' were found to be in the ratio of 1: 7 in a sample of a the given rock. The age of the rock is estimated to be (a) 60 years (c) 100 years (b) 80 years (d) 40 years
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Chemistry
Authors: Raymond Chang
10th edition
77274318, 978-0077274313
