The composition and structure are similar: as the molecular mass increases, the force increases
intermolecular hydrogen bonding
mixed crystal
graphite
sp2 hybridization
melting point
Easy to conduct electricity
Molecular crystal: 1. Similar composition x: the greater the polarity, the stronger the force 2. Isomers: the more branches, the lower 3. Intermolecular hydrogen bonds: ↑
Covalent crystal>Ionic crystal>Molecular crystal Metal crystal>Molecular crystal