Question

Crystal is regarded as space grating because -----

a.

Regularly arranged lattice points

b.

There is regular and periodic arrangement of atoms, ions or molecules

c.

it is made of sets of parallel and equidistant atomic planes​

Answer 1

Explanation:

b. There is regular and periodic arrangement of atoms, ions or molecules.

Answer 2

тнεяε ıs яεgυℓαя αη∂ ρεяıσ∂ıc αяαηgмεηтs σғ αтσмs , ıσηs σя мσℓεcυℓεs...!!