हिंदी
Karnataka Board PUCPUC Science 2nd PUC Class 12

Classification of Crystalline Solids

Advertisements

Topics

Estimated time: 3 minutes
Maharashtra State Board: Class 12

Key Points: Classification of Crystalline Solids

Property Ionic Solids Covalent Network Solids Molecular Solids Metallic Solids
Particles Cations and anions Covalently bonded atoms Mono/polyatomic molecules Metal ions in a sea of electrons
Forces Electrostatic Covalent bonds London, dipole-dipole, H-bonding Metallic bonds
Hardness Hard and brittle Very hard Soft Soft to very hard
Melting point 600–3000°C 1200–4000°C Low (−272 to 400°C) −39 to 3400°C
Conductivity Poor (solid); good (molten/aqueous) Poor (except graphite; diamond conducts heat) Poor Good conductor of heat and electricity
Examples NaCl, CaF₂ Diamond, silica Ice, benzoic acid Na, Mg, Cu, Au
Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×