Which type of crystalline solid has constituent particles held by **electrostatic** forces between oppositely charged ions?
AMolecular solids
BCovalent network solids
CIonic solids (e.g. NaCl, KCl, CaF₂)
DMetallic solids
Answer & Solution
Correct answer: C. Ionic solids (e.g. NaCl, KCl, CaF₂)
Ionic solids: cations and anions held by Coulomb attraction. Hard, brittle, high melting points; non-conductors in solid state but good conductors when melted or dissolved.
Related questions
Ionic solids must always maintain:Vacancy and interstitial defects are shown by solids that are:An interstitial defect changes the density of a substance by:Particles occupying an interstitial site give a defect that is:A cell with extra particles on two opposite faces is:A cell with an extra particle at the centre of every face is:A cell with one extra particle at its centre is called:Centred unit cells come in how many types?