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smithc52 smithc52
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The half-life of 90Sr is 29 years.  What fraction of the atoms in a sample of 90Sr would remain 175 years later?

▸ 0.17

▸ 0.12

▸ 0.062

▸ 0.015

▸ 0.50
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Chemistry

Chemistry


Edition: 11th
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angelord2510angelord2510
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