Question

MgO has the structure of NaCl. The coordination number of the ions in MgO is ____________.

Options

• 2

• 4

• 6

• 8

Answer 1

MgO has the structure of NaCl. The coordination number of the ions in MgO is 6.

Explanation:

Coordination number in NaCl is 6. These are ionic solids. Ions are the constituent particles of ionic solids. Such solids are formed by the three-dimensional arrangements of cations and anions bound by strong coulombic (electrostatic) forces.