Question

The difference in the angular momentum of an electron in two successive orbits of a hydrogen atom is ______.

Options

• `"h"/(2pi)`

• `"h"/pi`

• (n - 1)`"h"/(2pi)`

• `"h"/2`

Answer 1

The difference in the angular momentum of an electron in two successive orbits of a hydrogen atom is `underlinebb("h"/(2pi))`.

Explanation:

The difference in angular momentum associated with the electron in the two successive orbits of the hydrogen atom is `"h"/(2pi)`

The angular momentum is an integral multiple of `"h"/(2pi)`

mvr = n`"h"/(2pi)`

For two successive orbits with principal quantum numbers n and n + 1, the difference in angular momentum 

= (n + 1)`"h"/(2pi)-"n""h"/(2pi)="h"/(2pi)`