Question

"Electronegativity is the case of gaining electrons."

(a) Which type of elements will have high electronegativity?
(b) How does electronegativity change as we move
i) Across a period
ii) Down a group?

Answer 1

(a) Elements in the right side of the periodic table have high electronegativity.Fluorine has the highest electronegativity.
(b)Electronegativity
(1) increases across a period
(2)decreases down a group.

Answer 2

Explanation:

(a) More is the ability or tendency of an atom to attract the electrons towards itself more will be the electronegativity of the atom.

For example, fluorine has the highest tendency to attract electrons and therefore, it is the most electronegative atom.

(b)  When we move across a period then there will be increase in electronegativity.

Whereas when we move down a group then there will be decrease in electronegativity.