Physical Science Ch. 5

A chemical bond is a lasting attraction between atoms, ions, or molecules that enables the formation of chemical compounds.

The three main types of chemical bonds are ionic, covalent, and metallic.

The octet rule states that atoms are generally most stable when they have eight electrons in their valence energy level.

An ionic bond is formed when one atom transfers electrons to another atom, resulting in the formation of charged ions.

A covalent bond is formed when two atoms share one or more pairs of electrons.

A metallic bond is formed when electrons are shared among a lattice of metal atoms, creating a 'sea of electrons'.

A compound is a substance formed when two or more different elements are chemically bonded together.

Valence electrons are the outermost electrons of an atom and are involved in forming bonds with other atoms.

The formula for an ionic compound is determined by the charges of the ions involved, ensuring that the total charge is neutral.

A Lewis structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.