The number of network solids and ionic solids in the list given below is respectively H$_2$O (ice), AlN, Cu, CaF$_2$, diamond, MgO, CCl$_4$, ZnS, Ag, NaCl, SiO$_2$
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Identify solids based on bonding — network (covalent), ionic, molecular, or metallic.
Network Solids:Diamond, SiO$_2$, AlN $\Rightarrow$ 3
Ionic Solids: NaCl, MgO, CaF$_2$, ZnS $\Rightarrow$ 4
Others: Cu and Ag are metallic, CCl$_4$ is molecular, H$_2$O (ice) is molecular solid.