Question

For the ground state, the electron in the H - atom has an angular momentum = h, according to the simple Bohr model. Angular momentum is a vector and hence there will be infinitely many orbit with the vector pointing in all possible directions. In actually, this is not true,

• A. because Bohr's model gives incorrect values of angular momentum.
• B. because only one of these would have a minimum energy.
• C. angular momentum must be in the direction of spin of electron
• D. because electrons go around only in horizontal orbits.

Answer 1

The correct option is A because Bohr's model gives incorrect values of angular momentum.

According to Bohr's second postulate of atomic model, angular momentum of revolving electron must be some integral multiple of $\frac{h}{2\pi }$ so the Bohr's model does not give correct value of angular momentum. Hence verified answer is (a).