4-2 Polarity Practice

Front

What is a polar covalent bond?

Back

A type of chemical bond where electrons are shared unequally between two atoms, resulting in a molecule with a partial positive charge on one end and a partial negative charge on the other.

Front

What is electronegativity?

Back

A measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What is the electronegativity difference range for a polar covalent bond?

Back

Between 0.4 and 1.7.

Front

What type of bond is formed when the electronegativity difference is less than 0.4?

Back

Nonpolar covalent bond.

Front

What type of bond is formed when the electronegativity difference is greater than 1.7?

Back

Ionic bond.

Front

How do you determine the polarity of a molecule?

Back

By examining the electronegativity differences between the atoms and the molecular geometry.

Front

What is the polarity of a diatomic molecule like Br-Br?

Back

Nonpolar, because the two atoms have the same electronegativity.

Front

In a polar covalent bond, where do the electrons tend to gather?

Back

Around the atom with the greatest electronegativity.

Front

What is the order of bond types from lowest to highest charge?

Back

Nonpolar Covalent -> Polar Covalent -> Ionic.

Front

What is a nonpolar covalent bond?

Back

A type of bond where electrons are shared equally between two atoms, resulting in no charge separation.