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shchandan shchandan
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A nuclide has a decay constant of 4.28 × 10-4/h. If the activity of a sample is 3.14 × 105/s, how many atoms of the nuclide are present in the sample?

▸ 7.34 × 108

▸ 2.64 × 1012

▸ 4.84 × 105

▸ 1.34 × 102

▸ 2.34 × 1011
Textbook 

General Chemistry: Principles and Modern Applications


Edition: 11th
Authors:
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PHchickPHchick
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2.64 × 1012
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