Keeping in view the periodic law and the periodic table,suggest which of the following elements should have the maximum electronegative character.

Which of the following elements has the highest electronegativity?

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

For $AB$ bond,if percent ionic character is plotted against electronegativity difference $(X_A - X_B)$,the shape of the curve would look like. The correct curve is:

According to the Mulliken scale,which parameters are required to determine electronegativity?

Given that the ionization potential and electron gain enthalpy of chlorine are $13 \ eV$ and $4 \ eV$ respectively. The electronegativity of chlorine on the Mulliken scale is approximately equal to: (in $eV$)