madinaxoxo1015 madinaxoxo1015 27-02-2024 Chemistry contestada The average atomic mass of a sample of an element X is 16.2 u. What are the percentages of isotopes 10⁸X and 11⁸X in the sample? A. 60%, 40% B. 70%, 30% C. 80%, 20% D. 90%, 10%