Maharashtra BoardEnglish MediumSTD 12 ScienceChemistrySolid State3 Marks
Question
What are the characteristic properties of solids?
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Answer
The solid state of matter is characterised by strong interparticle forces of attraction.
There is regularity and periodicity in the arrangement of constituent particles of solid.
Generally solids are hard, incompressible and rigid except some solids like Na, K, P which are soft.
The constituent particles of solids like molecules, atoms or ions have fixed stationary positions in solid and can only oscillate about their equilibrium or mean positions. Hence, they have fixed shape and cannot be poured like liquids.
Crystalline solids have sharp melting points and they melt at a definite temperature. Amorphous solids do not have sharp melting points.
They are anisotropic or isotropic.
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