Bohr’s model of the hydrogen atom introduced the idea that the electron possesses…
CHEMISTRY · Multi-part · CBSE · Chemistry · Structure of Atom · Structure of Atom
Problem
Bohr’s model of the hydrogen atom introduced the idea that the electron possesses only certain discrete amounts of angular momentum. Use this idea to analyse the stability of the atom.
(i) State the postulate that describes the allowed values of the electron’s orbital angular momentum.
(ii) Explain how this postulate removes the contradiction between classical electrodynamics (which predicts a continuously radiating electron) and the observed stability of atoms.
(iii) Give a reason why the principal quantum number associated with these allowed orbits must be a positive integer, and not a fractional or negative value.