Question

state that attendanin the variation of electronegativity in group and period​

Answer 1

State the trends in the variation of electronegativity in groups and periods

So, as you move down a group on the periodic table, the electronegativity of an element decreases because the increased number of energy levels puts the outer electrons very far away from the pull of the nucleus. Electronegativity increases as you move from left to right across a period on the periodic table.