# Are network covalent bonds STRONGER than ionic bonds?

Mar 27, 2017

Network covalent bonds are generally stronger than ionic bonds. Of course, we are comparing apples with oranges.

#### Explanation:

Both network covalent solids, and ionic solids ARE non-molecular, and are therefore expected to have elevated melting points with respect to molecular species.

Let's compare the melting points of $N a C l$ to $S i {O}_{2}$:

$\text{Melting point, NaCl} = 801$ ""^@C

$\text{Melting point, silicon dioxide} = 2950$ ""^@C (And, of course, quartz is network covalent).

And we could throw in another example:

$\text{Melting point,}$ $N {a}_{2} O = 1132$ ""^@C

And another:

$\text{Melting point,}$ $C a {F}_{2} = 1418$ ""^@C

This series at least demonstrates, that as the charge of the cation increases, the INTRAMOLECULAR ionic force becomes greater in magnitude, and this is manifested by the increased melting point.