catYvonne
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  • 12-01-2023
  • Chemistry
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A carbon atom has a relative atomic mass of 13.5. 60% of the carbon atom has a mass number of 12.8, 30% of the carbon atom has a mass number of 13.8, whilst the remaining 10% has a mass number which is not known.
Calculate the mass number of the carbon isotope which is 10% of the Carbon 13.5 atom.
Give your answer to 1 decimal place.

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