Rubidium-87 decays by β production to strontium-87 with a half life of 4.7 × 1010 years. What is the age of a rock sample that contains 107.2 µg 87Rb and 7.6 µg 87Sr ? Assume that no 87Sr was present when the rock was formed. The atomic masses are given in the table below: Nuclide Atomic Mass 87Rb 86.90919 87Sr 86.90888
Rubidium-87 decays by β production to strontium-87 with a half life of 4.7 × 1010 years. What is the age of a rock sample that contains 107.2 µg 87Rb and 7.6 µg 87Sr ? Assume that no 87Sr was present when the rock was formed. The atomic masses are given in the table below: Nuclide Atomic Mass 87Rb 86.90919 87Sr 86.90888
Chapter19: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 76CWP
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Rubidium-87 decays by β production to strontium-87 with a half life of 4.7 × 1010 years. What is the age of a rock sample that contains 107.2 µg 87Rb and 7.6 µg 87Sr ?
Assume that no 87Sr was present when the rock was formed.
The atomic masses are given in the table below:
| Nuclide | |
| 87Rb | 86.90919 |
| 87Sr | 86.90888 |
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