Polarity and electronegativity

Front

What is polarity in chemistry?

Back

Polarity refers to the distribution of electrical charge over the atoms joined by the bond. It determines how electrons are shared between atoms.

Front

What is electronegativity?

Back

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

Front

What type of bond is formed when electrons are shared evenly between two atoms?

Back

A nonpolar covalent bond.

Front

What type of bond is formed when electrons are shared unevenly between two atoms?

Back

A polar covalent bond.

Front

What type of bond occurs when electrons are transferred from one atom to another?

Back

An ionic bond.

Front

What is the electronegativity difference for a nonpolar covalent bond?

Back

Less than 0.4.

Front

What is the electronegativity difference for a polar covalent bond?

Back

Between 0.4 and 1.7.

Front

What happens to the electrons in an ionic bond?

Back

Electrons are not shared; they are transferred from one atom to another.

Front

In a nonpolar covalent bond, how are the electrons distributed?

Back

Electrons are distributed equally between the two atoms.

Front

In a polar covalent bond, how are the electrons distributed?

Back

Electrons are distributed unevenly, favoring the more electronegative atom.