An element Z contains 80% of 168 8 16 Z and..

Question 1 Report

An element Z contains 80% of $_{8}^{16}$ Z and 20% of $_{8}^{18}$ Z. Its relative atomic mass is

16.2

17.6

16.0

16.4

Answer Details

R.A.M of Z = $16 (\frac{80}{100}) + 18 (\frac{20}{100})$
= $12.8 + 3.6$
= 16.4

An element Z contains 80% of 168 8 16 Z and 20% of 188 8 18 Z. Its relative atomic mass is