Atomic Structure and Bonding

Isotope

Atoms of the same element with different numbers of neutrons.

Atomic Mass

The number of neutrons plus the number of protons.

Isotope

Atoms of the same element with different numbers of neutrons.

Atomic Mass

The number of neutrons plus the number of protons.

Atomic Number

The number of protons

Valence Electrons

The electrons in the outermost shell of an atom.

Core Electrons

The electrons in the inner shells of an atom, all non valence electrons.

Octet Rule

Atoms will gain, lose, or share electrons in order to get 8 valence electrons.

Ion

Charged particle, the protons do not equal the neutrons.

Ionic Bond

A bond between a metal and a non metal that involves the transfer of electrons from the metal to the non metal, resulting in the formation of charged ions.

Ionic Compound

The resulting compound from an ionic bond.

Molecule

The resulting compound of an covalent bond.

Covalent Bond

A bond between two nonmetals that involves the sharing of electrons.