Which one of the following statements is NOT applicable to covalent network solids?

Which one of the following statements is NOTapplicable to covalent network solids?1. Covalent solids do not conduct electriccurrent well.2. The bonding in covalent solids involvesshared electrons.3. Covalent solids have low melting points.4. Covalent solids are very hard.5. The individual units in the solid are atomsrather than ions.