Question

The average atomic mass of sample of an element X is 16.2 u. What are the percentages of isotopes and in the sample?


Also can we round off 16.2u to 16u and solve also what do you mean by sample of an element?? ​

Answer 1

Explanation:

Yes, you may round of to 16 u, but it will introduce a diff. of 0. something in the answer. And, by the sample of an element, they mean that they have taken that element in a particular amount from a source.