electronegativity

What is the definition of electronegativity?

The ability of an atom to attract the bonding pair in a covalent bond

What does it mean if the atom has a greater electronegativity?

The greater it can attract the electrons towards it

In a polar bond, which element is given the negative delta and which is given the positive delta?

The more electronegative element is delta negative and the less electronegative is delta positive

Which is the most electronegative element?

Fluorine

Who made the electronegativity table and in what year?

Linus Pauling in 1932

What should the difference in electronegativity be to be simply covalent?

Less than 0.4

What should the difference in electronegativity be to be a polar molecule?

0.4 - 1.8

What should the difference in electronegativity be to be an ionic compound?

More than 2.0

What is a dipole?

A slight difference in charge across a bond

Why can’t symmetrical molecules ever be polar

Because the dipoles cancel out as the forces act in opposite directions.