AP Chemistry / Unit 3: Properties of Substances and Mixtures
3.2 Properties of Solids
Notes
| Solid | Particles | Properties |
|---|---|---|
| ionic | ions | high mp, brittle, conducts when molten |
| molecular | molecules | low mp, soft, no conduction |
| covalent network | atoms in a network | very high mp, hard (diamond, $\mathrm{SiO_2}$) |
| metallic | cations in electron sea | conducts, malleable |
Practice
Diamond has a very high melting point because it is a:
Covalent bonds throughout.
Ice is a:
Molecules held by IMFs.
Which conducts electricity as a solid?
Metals have mobile electrons.
Ready for more? Take the Unit 3 test.