Science Unit 3- Chapter 3

An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom a net positive or negative electrical charge

A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms.

An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions

In chemistry, an ionic compound is a chemical compound in which ions are held together in a lattice structure by ionic bonds

A molecular compound is defined as a compound held together by covalent bonds.

A covalent bond is the chemical bond that involves the sharing of pairs of electrons between atoms.

A molecule is an electrically neutral group of two or more atoms held together by covalent chemical bonds.