Question

Indicate the type of crystal (molecular, metallic, covalent-network, or ionic) each of the following would form upon solidification.


1. B

Answer 1

r2
2. Silicon dioxide
3. Sodium chloride
4. Copper
5. Water

1. Boron would likely form a covalent-network crystal.
2. Silicon dioxide forms a covalent-network crystal.
3. Sodium chloride forms an ionic crystal.
4. Copper forms a metallic crystal.
5. Water forms a molecular crystal (ice).