One important property of a material is the atom density. The atom density is the number of atoms of a given type per unit volume of the material. To calculate the atom density of a substance use Equation (2-1).

where:

Example:

A block of aluminum has a density of 2.699 g/cm³.        If the gram atomic weight of aluminum is 26.9815 g, calculate the atom density of the aluminum.

Solution:

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