How do the particles of the solid distribute in the liquid ?

The process of setting down of particles of a solid in a liquid is known as

You found the relative densities of some solids and some liquids by doin some activities. List the solids and liquids in increasing order of relative density.

Assertion (A) : Rate of diffusion of gases is higher than that of liquids or solids. Reason (R_1) : There is a greater space between gas particles in gases. Reason (R_2) : Speed of gas particles in gas is more than that of liquids or solids.

How do the sub-atomic particles coexist in an electrically neutral atom?

"The particles of matter have forces acting between them that keep the particles together." - How do you prove this statement ?