Question

A metal forms cubic crystals. The mass of one unit cell of it is M/NA gram, where M is the atomic mass of the

metal and NA is the Avogadro no. What is the type of cubic unit cell possessed by the metal?​

Answer 1

Answer:

Atomic mass(M) of an element in grams is the mass of NA atoms of that element.So mass of one atom is equal to M/NA grams. Since the given mass of the unit cell is also equal to M/NA grams, it must has exactly one atom in it. So the type of unit cell is a simple cubic cell.