The coordination number of each atom in simple cubic structure is

Options

A. `6`
B. `4`
C. `8`
D. `9`

Answer

1

Explanation

Unit cell of the simple cubic structure is primitive cubic unit cell. Each sphere is touched by six neighbours four in the same layer. one directly above and one directly below. Remember in primitive cubic unit cell the atoms sitting at the corners are in direct touch. Thus a corner atom is in touch with top and bottom atoms right and left atoms front of rear atoms.