Metallic bond
Atoms linked together by the migration of electrons from atom to atom.

Metals
The elements in the middle and left parts of the periodic table, except for hydrogen.

Molality
The number of moles of solute in 1 kilogram of solvent.

Molarity
The number of moles of solute in q liter of solution.

Mole
An amount of substance equal in grams to the sum of the atomic weights.

Molecular formula
Describe the ratio of elements in a molecule.

Molecule
A group of atoms linked together by covalent bonds.