Chapter 9: Chemical Bonding I: Basic Concepts

Flashcards covering key terms and concepts from Chapter 9 on chemical bonding.

Ionic Bond

The electrostatic force that holds ions together in an ionic compound.

Covalent Bond

A bond in which two electrons are shared by two atoms.

Lattice Energy

The energy required to completely separate one mole of a solid ionic compound into gaseous ions.

Electronegativity

The ability of an atom to attract toward itself the electrons in a chemical bond.

Lewis Structure

A diagram that shows the arrangement of valence electrons among atoms in a molecule.

Formal Charge

The charge an atom would have if all atoms in the molecule had the same electronegativity.

Bond Enthalpy

The enthalpy change required to break a particular bond in 1 mole of gaseous molecules.

Octet Rule

An atom tends to form bonds until it is surrounded by eight valence electrons.

Resonance Structure

One of two or more Lewis structures for a single molecule that cannot be represented accurately by only one structure.

Polar Covalent Bond

Electrons are shared unequally between two atoms.