Question

The band gap in N(E) v/s E curve for metal is
Options
O very high
overlapping of orbitals
1 and 3 both
O very low​

Answer 1

Answer:

over laping of orbitals

Explanation:

the ans 2

Answer 2

The bandgap in N(E) v/s E curve for metal is overlapping of orbitals.

Explanation:

• The bandgap is a consequence of quantum mechanical interactions within electrons of atoms in proximity to each other.
• It helps to see the energy levels associated with single electrons and how those energy levels change as you go from such isolated particles to the multiple atoms characteristic of a solid.

• With a single electron all by itself, solving its Schrödinger equations for a zero potential gives the following result for energy $E=\frac{h^{2} k^{2} }{2m}$

         h is Planck's constant.

• A bandgap is also called an energy gap.
• It is an energy range in a solid where no electronic states can exist. In graphs of the electronic band structure of solids.