ionic solids#!#bragg law

Braggs Law

Ionic solids are hard and brittle. Explain.

Match the defects given in Column I with the statements in given Column II. Column I (i) Simple vacancy defect (ii) simple interstitial defect (iii) Frankel defect (iv) Schottky defect Column -II (a) Shown by non-ionic solids and increases denstiy of the solid. (b) Shown by ionic solids and decreases density of the solid. (c) shown by non ionic solids and density of the solid decreases. (d) Shown by ionic solids and density of the solid remains the same.

Ionic solids are characterised by

Ionic solids are generally

Why are ionic solids conducting in the molten state and not in the solid state ?

The compound is covalent in gaseous state but ionic in solid state is.

An ionic solid is poor conductor of electricity because