Q3: The average atomic mass of a sample of an element X is 16. 2 u . What is the percentage of each isotope 16 X and 18 X in the sample? [At. No. of x = 8]
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It is given that the average atomic mass of the sample of element X is 16.2 u. Let the percentage of isotope 8 18 X be y%. Thus, the percentage of isotope 8 16 X will be (100 − y)%. Therefore, the percentage of isotope 8 18 X is 10%.
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10%
Explanation
===>it is given that the average atomic mass of the sample of the element x is 16.2 u.
===>let percentage of isotope 18x be y%.
===>Thus the percentage of the isotope 16x will be (100-y)%.
===>The percentage of isotope 18x is 10%
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