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 will be infinitely many orbits with the vector pointing in all possible directions. In actuality, this is not true,

• A. Because Bohr model gives incorrect values of angular momentum
• B. Base 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 model gives incorrect values of angular momentum

Bohr's model give only the magnitude of angular momentum,

which is vector

Hence, it does not give the correct value of angular momentum

of resolvng electron.

therefore option $A$ is correct answer.