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The Basics ⚛️
- Molecular solids are made of molecules or atoms held together by intermolecular forces, not covalent bonds.
- Take ice, for example.
- Sure, each individual molecule is held together by covalent bonds, but the actual solid is created by hydrogen bonds connecting the molecules to each other.
- Intermolecular forces are weaker than ionic or covalent bonds, so molecular solids are relatively soft and flexible.
- This also means they tend to have low melting points.
- They do not conduct electricity because electrons are localized within individual molecules.
- Polar molecular solids, like sugar, will be soluble in water.
- Keep in mind that the individual molecules don't break apart, only the intermolecular forces do!