Question

Correct order of electronegativity for the given elements is:

• A. $Na<Mg<Br<F$
• B. $Na<Mg<Br<F$
• C. $Na<Mg<Br<F$
• D. $Na<Mg<Br<F$

Answer 1

The correct option is C $Na<Mg<Br<F$

Electronegativity increases left to right along a period and decreases from top to botttom in a group.
$Na,Mg$ are electropositive elements whose electronegativity is less than $Br$ and $F$.
$F$ is most electronegative element and $Br$ is less electronegative than $F$
Hence, the correct order is: $Na<Mg<Br<F$

Periodic table trends: