Question

The total energy of an electron in hydrogen atom in excited state is -3.4 what is the de broglie wavelength of an electron

Answer 1

The electron in the hydrogen atom can be in any of a nearly infinite number of quantized energy levels. A spectral line is emitted when the electron makes a transition from one discrete energy level to another discrete energy of lower energy.

Answer 2

Answer:

6.6×$10^{-10}$ m

Explanation:

λ=$\frac{h}{\sqrt{2mk} }$

h=6.6×$10^{-34}$

m=9.1×$10^{-31}$

k=KE=-(Total energy)=3.4ev

⇒λ=6.6×$10^{-10}$