On going from right to left in a period in the periodic table,the electronegativity of the elements:

Which among the following elements has the highest electronegativity?

The outermost electronic configuration of the most electronegative element is

Which of the following statements is not correct?

Which of the following elements has the highest electronegativity?

Among the following,the pairs of elements having approximately the same electronegativity values are:
$I$. $H$ and $P$
$II$. $Be$ and $Al$
$III$. $N$ and $Cl$
$IV$. $C$ and $P$