The average atomic mass of a sample of an element X is 16.2u. What are the percentages of the isotopes 168X 188X in the sample?
Answers
Answered by
3
Answer:
16.2 = 16 × x/100 + 18 × (100-x)/100. Thus the percentage of X in the sample is 90℅. The percentage of the other isotope X in the sample will be 100-90 = 10%.
Similar questions