What Indicates the Quantized Nature of Electrons in Atoms?

[Tmoneydaphys]

Homework Statement

Phenomena/Features that imply the quantized nature of the electrons in an atom

Homework Equations

The Attempt at a Solution

Electrons can take only certain allowed energy values. when an electron moves from a high energy level to a lower level, a photon is emitted by the electron. the photon carries away the energy lost by the electron. since the electron is only allowed certain energy values, the photon can only have certain energy values.

This is what I have so far (and if I'm on the right path)? i would like to know if there is any other phenomena/features that imply the quantized nature of electron in an atom

 

[Jhero]

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Yes, you are on the right track! Another phenomenon that implies the quantized nature of electrons in an atom is the discrete emission spectrum of an element. When an electron transitions from a higher energy level to a lower one, it emits a photon with a specific energy and wavelength. This results in a series of distinct lines in the emission spectrum, rather than a continuous spectrum. This can only be explained by the quantized energy levels of electrons in an atom. Additionally, the photoelectric effect also supports the idea of quantized energy levels, as it shows that electrons can only be ejected from a metal surface if the incident light has enough energy to overcome the binding energy of the electron. This supports the idea that electrons exist in discrete energy levels.