Question

Energy bands in solids are a consequence of(a) Ohm’s Law(b) Pauli’s exclusion principle(c) Bohr’s theory(d) Heisenberg’s uncertainty principle

Answer 1

(c) Bohr's theory is the answer I guess

Answer 2

Answer:

Energy bands in solids are a consequence of (b) Pauli’s exclusion principle.

Explanation:

According to Pauli's exclusion principle, two electrons cannot have the same quantum numbers in a given molecule.

Therefore, when two identical atoms combine to give rise to a diatomic molecule, each atomic orbital breaks up into two different molecular orbitals( different energy).

This allows the electrons in the first atomic orbitals to occupy a new orbital structure but none have the same energy.