7N, 6C, 8O, 5B, 13Al Which is the most electronegative element among these?

Question

Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.

₇N, ₆C, ₈O, ₅B, ₁₃Al Which is the most electronegative element among these?

Answer 1

₇N, ₆C, ₈O, ₅B, ₁₃Al 

Elements and thier electronic configuration

₇N=2,5

 ₆C=2,4

 ₈O=2,6 

₅B=2,3

 ₁₃Al =2,8,3

The most electronegative element is ₈O as electronegativity decreases down a group while it increases moving across a period from left to the right .