If 100 atoms of element X contains 70 atoms of 9 X and 30 atoms

CHEMISTRY

WAEC 2009

If 100 atoms of element X contains 70 atoms of⁹X and 30 atoms of¹¹X, calculate the relative atomic mass of X

A. 9.6
B. 10.6
C. 11.6
D. 20.0

Correct Answer: A. 9.6

Back to WAEC 2009 Questions

Post an Explanation Or Report an Error

If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *