Attraction Between Molecules

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

Are all molecules with polar covalent bonds polar?

Back

No, a molecule can have polar covalent bonds but still be nonpolar overall if the molecular geometry allows for the dipoles to cancel out.

Front

What type of bond forms between calcium and bromine?

Back

Ionic bond, due to the transfer of electrons from calcium (a metal) to bromine (a non-metal).

Front

What are intermolecular forces?

Back

Forces that occur between molecules, affecting properties like boiling and melting points.

Front

What does a symbol above an atom in a Lewis structure indicate?

Back

It indicates the relative attraction of electrons to that atom compared to others in the structure.

Front

What is electronegativity?

Back

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

Front

What type of bond is formed when two nonmetals share electrons equally?

Back

Non-polar covalent bond.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons.

Front

What is a non-polar molecule?

Back

A molecule that has an even distribution of charge, resulting in no distinct positive or negative poles.

Front

How do intermolecular forces affect boiling points?

Back

Stronger intermolecular forces result in higher boiling points because more energy is required to separate the molecules.