Bond Polarity/Molecular Polarity

Front

What is a polar covalent bond?

Back

A type of 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 a nonpolar covalent bond?

Back

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

Front

What is molecular polarity?

Back

The distribution of electrical charge over the atoms in a molecule, determining whether the molecule has a positive or negative end.

Front

How can you determine if a molecule is polar or nonpolar?

Back

By examining its symmetry and the electronegativity differences between the atoms. If the molecule is symmetrical and has no significant electronegativity difference, it is nonpolar.

Front

What is electronegativity?

Back

A measure of an atom's ability to attract and hold onto electrons in a bond.

Front

What is the significance of a symmetrical molecule?

Back

Symmetrical molecules tend to be nonpolar because the charge distribution is even, canceling out any dipole moments.

Front

What is a dipole moment?

Back

A measure of the separation of positive and negative charges in a molecule, indicating its polarity.

Front

What type of bond is formed between H and Cl?

Back

Polar covalent bond, due to the difference in electronegativity between hydrogen and chlorine.

Front

What is an ionic bond?

Back

A type of bond formed when electrons are transferred from one atom to another, resulting in the formation of charged ions.

Front

What happens to the polarity of a molecule when it contains multiple polar bonds?

Back

The overall polarity depends on the arrangement of the polar bonds; if they are arranged symmetrically, the molecule may be nonpolar.