In an atom when electrons transition from excited state to ground state, which of the statement is true ?

Options

A. K increase and U and E decreases.
B. K decrease and U and E remains constant.
C. K and E decreases and U increases.
D. K, U and E decreases.

Answer

A

Explanation

K increase and U and E decreases.
In `Kprop(1)/(n^(2))` as n decreases K increases.
In `Uprop-(1)/(n^(2))` as n decreases the negative value of U increases hence potential energy decreases.
In `Eprop-(1)/(2n^(2))` as n decreases, the negative value of E increases hence total energy decreases.