Describe electronegativity and explain the trend of electrnegativity in the periodic table

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.

Electronegativity is the pulling of shared electrons towards an atom. Electronegativity increases as you move across the table from left to right.

Explanation:

Ex.) Fluorine has a high electronegativity of 3.98