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Calculate the number of atoms belong to one unit cell of simple cubic unit cell(sc).

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1. In the simple cubic unit cell, each corner is occupied by an identical atoms (or) ions (or) molecules and they touch along the edges of cube,do not touch diagonally. The coordination number of each atom is 6.

2. Each atom in the comer of the cubic unit cell is shared by 8 neighbouring unit cells and therefore atoms per unit cell is equal to \(\frac{N_c}{8}\). where Nc is the number of atoms at the corners.

3. no of atoms in a Sc unit cell = \(\Big(\frac{N_c}{8}\Big)\) = \(\Big(\frac{8}{8}\Big)\) = 1

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