A) 10
B) 11
C) 10.8
D) 11.8
Correct Answer: C
Solution :
Atomic mass \[=\frac{19.9\times 10.013+80.1\times 11.009}{100}\] \[=\frac{199.26+881.82}{100}=\frac{1081.08}{100}=10.81\]You need to login to perform this action.
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