As an electron makes a transition from an excited state to the ground state of hydrogen-like atom`//`ion:

Options

A. its kinetic energy increase but potential energy and total energy decrease
B. kinetic energy, potential energy and total energy decrease
C. Kinetic energy decrease, potential energy increases but total enrgy remian same
D. kinetic energy and total energy decrease but potential energy increases

Answer

A

Explanation

`KE prop ((Z)/(n))^(2)`
an `n` decreases `KE` increases and `TE, PE` decreases