The proportions of different isotopes in rocks can be used to date the rocks. The half-life of
Question:
The proportions of different isotopes in rocks can be used to date the rocks. The half-life of uranium-238 is 4.9 × 109 years. A sample has 99.2% of the proportion of this isotope compared with newly formed rock.
a. Calculate the decay constant in y−1 for this isotope of uranium.
b. Calculate the age of the rock in years.
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a To calculate the decay constant in y1 we can use the following formula ...View the full answer
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Related Book For 
Cambridge International AS And A Level Physics Coursebook
ISBN: 9781108859035
3rd Edition
Authors: David Sang, Graham Jones, Gurinder Chadha, Richard Woodside
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