The simple Bohr model cannot be directly applied to calculate the energy level of an atom with many electrons . This is because.

Options

A. of the electron not being subject to a central force
B. of the electron colliding with each other
C. of scrrening effects
D. the force between the nucleus and an electron will no longer be given by Coulomb's law

Answer

A

Explanation

The simple Bohr model cannot be directly applied to calculate the energy levels of an atom with many electorns. This is because of the electrons not being subject to a central force.