What is Electronegativity? Electronegativity is defined as the tendency of an atom in a molecule to attract the shared electron pair towards itself is known as electronegativity. Electronegativity Trends in Periodic Table: Electronegativity trends that can be observed in the periodic table as we move from left to right in a periodic table, the electronegativityElectronegativity – Definition, Periodic Trends ,Examples , Importance ,Electronegativity Difference – Digital Kemistry