Question

using Bohr's postulates derive the expression for the orbitals period of an electron moving in nth orbital of H- atom

Answer 1

Every atom consists of nucleus and suitable number of electrons revolved around the nucleus in circular orbits.

(ii) Electrons revolved only in certain non-radiating orbits called stationery orbits for which the total angular momentum is an integral multiple of h/2p where h is plank's constant.



L is the Angular momentum of the revolving electrons

(iii) Radiation occurs when an electron jumps from one permitted orbit to another. It is emitted when electron jumps from higher orbit to a lower orbit

i.e., E2 - E1 = hf, where f is fr

Answer 2

their would be only one electron in the h- and it has a valency1