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 increase and its potential and total energies decrease
B. Its Kinetic energy decrease , potential energy increases and its total remian the same
C. Its Kinetic and total energies decrease and its potential energy increases
D. Its Kinetic , potential and total energies decrease

Answer

A

Explanation

Kitnetic energy `(K.E)=(13.6z^(2))/(n^(2)eV)`
Ptential `(P.E)=(-2(13.6)z^(2))/n^(2)eV`
Total energy `(T.E) =(-13.6z^(2))/n^(2)eV` When an electron in H-atom makes a transition from an excited state to the ground state, value of n decrease, hence `K.E` & `T.E`. decrease