Question

I have to show my work after I find the atomic weight of each element please help !!

Answer 1

Step-by-step explanation:

For all of the questions, do the following calculation

`(isotope \: * abundance)/(100) + (isotope \: * abundance)/(100) ...`

As an example, I'll do question 1

`(204 * 1.480)/(100) + (206 * 23.6)/(100) + (207 * 22.6)/(100) + (208 * 52.3)/(100) = 207.20`