SOLID

• WHAT IS THE PARTICLE ARRANGEMENT IN A SOLID?

  regular
• WHAT IS THE EVIDENCE FOR THE REGULAR PARTICLE ARRANGEMENT IN A SOLID?

  • crystal shapes have straight edges
  • solids have definite shapes
• WHAT IS THE SPACING OF PARTICLES IN A SOLID?

  close
• WHAT IS THE EVIDENCE FOR THE CLOSE SPACING OF PARTICLES IN A SOLID?

  not easily compressed
• WHAT IS THE MOVEMENT IN A SOLID?

  vibrating about a fixed point
• WHAT IS THE EVIDENCE FOR THE MOVEMENT OF A SOLID?

  • diffusion is very slow
  • solids expand on heating
• WHAT IS THE SPEED OF DIFFUSION IN A SOLID?

  very slow