Mock Test-XII , Solid state , How to prepare for examination - Videos

Solid are those substances which higher melting point than room temperature.
Solids are of two types – (a) Crystalline (b) Amorphous.
Crystalline solids possess regular arrangement of particles whereas Amorphous solid possess irregular arrangement of particles.
Unit cell – It is the smallest portion of lattice.
Lattice – It is the 3-D structure form by Unit cell.
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