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National Phase Institute

Solids

Explore the most stable state of matter.

Understanding Solids

Solids are characterized by their fixed shape and volume, with particles tightly packed in regular arrangements. The strong intermolecular forces hold particles in fixed positions, allowing only vibration.

Common examples include:

  • Metals (Iron, Gold, Copper)
  • Minerals and Crystals
  • Wood and Stone
  • Ice and Salt
  • Glass and Ceramics
Examples of Solids

Properties of Solids

Crystal Structure

Atoms are arranged in regular, repeating patterns forming crystalline structures. This gives solids their definite shape and volume.

Molecular Motion

Particles in solids vibrate in fixed positions but don't move freely. This vibration increases with temperature.

Density

Generally have high density due to tightly packed particles with minimal space between them.

Compressibility

Very low compressibility due to strong intermolecular forces and minimal space between particles.