Electronegativity and bond polarity

• The three most electronegative elements are Fluorine, Oxygen and Nitrogen
• Electronegativity generally increases from left to right along the period.
• Electronegatively tends to decrease moving down a group.
• The more electronegative an atom is the closer the electrons are to it in bonds it forms and the more likely it is to form anions.
• When two atoms with different electronegativities bond. The electron density around one atom will be greater creating a negative dipole.