Question

Bohr’s model is not able to account for which of the following.
(a) Stability of atom.
(b) Spectrum of neutral helium atom
(c)Energy of free electron at rest.
(d)Calculation of radii of the stationary states.​

Answer 1

Explanation:

option b

hope it will help u

Answer 2

Bohr’s model is not able to account for the spectrum of a neutral heli um atom.

Explanations:

• An essential feature of the success of quantum theory, which describes the sequence of radiation frequencies that make up the Balmer series type in the spectrum of hydrogen and ionized helium, also provides an understandable explanation for the difference in intensity of continuous lines of hydrogen and ionized helium.  
• Order and their assumptions are consistent with the known facts about the size of atoms in their normal state.  

• The basic assumption of the theory is that the state of the atom represented by the increase in quantum number diverges more and more from the normal state, and the greater intensity of the early lines in the sequence is actually easy to understand.

• The possibility of transition between states is high and the quantum number is small.