The electron in a hydrogen atom makes a transition from an excited state to the ground state. Which of the following statements is true?

Options

A. Its kinetic energy increases and its potential and total energies decrease.
B. Its kinetic energy decreases, potential increases and its total energy remain tha same
C. Its kinetic energy and total energies decrease, and its potential, energy increases.
D. Its kinetic potential and total energies decrease.

Answer

A

Explanation

We know that as the electron comes nearer to the nucleus, the potential energy decrease ((-KZe^(2))/( r) = PE and - r decreases))`
The `KE will increase [:. KE = (1)/(2) |PE| = (1)/(2) KZe^(2))/( r)]`
The Total energy decrease [TE = (1)/(2) KZe^(2))/( r)]`