Vibrational frequency of electrons in atoms

• desta41
In summary, the web site discusses how electrons are attached to atoms by springs, and how they are affected by light waves with a given frequency. The frequencies of the electrons are not classical, and the resonance associated with these atoms is classical.
desta41
Below is a paragraph taken from the web site, physicsclassroom.com:

'It is often useful to think of these electrons as being attached to the atoms by springs. The electrons and their attached springs have a tendency to vibrate at specific frequencies. Similar to a tuning fork or even a musical instrument, the electrons of atoms have a natural frequency at which they tend to vibrate. When a light wave with that same natural frequency impinges upon an atom, then the electrons of that atom will be set into vibrational motion. (This is merely another example of the resonance principle introduced in Unit 11 of The Physics Classroom Tutorial.) If a light wave of a given frequency strikes a material with electrons having the same vibrational frequencies, then those electrons will absorb the energy of the light wave and transform it into vibrational motion.'

Can the above be right? Wouldn't the vibrational frequencies of the electrons in atoms be non classical? And, what Hz would the frequencies be for the electrons?

Last edited:
jerromyjon said:
Molecular electron behavior is non-classical, but the atoms they connect and whatever the oscillation resonance these atoms exhibit is basically classical boundaries.

https://en.wikipedia.org/wiki/Absorption_spectroscopy
http://www.physics.uci.edu/~wilsonho/N062598.htm

Thank you for that information. But do you know what the frequencies of the electrons would be? Not the atoms and molecules, but just the vibrational frequency range for electrons..

Electrons don't have a measurable frequency in classical terms, they have a mass of 511,000 eV but no definable "location" to even track a frequency.

jerromyjon said:
Electrons don't have a measurable frequency in classical terms, they have a mass of 511,000 eV but no definable "location" to even track a frequency.

That's what I had thought. But I've been told there is a frequency associated to the orbitals, but it is a frequency related to the Schrödinger equation and not to a classical vibration. Do you know what those frequencies would be in Hz, kHz, etc.?

desta41 said:
Do you know what those frequencies would be in Hz, kHz, etc.?
1/2 reduced Planck spin? This isn't really a "frequency" in a natural sense. If it were, Bell's Theorem would explain reality as marbles bouncing around and the universe wouldn't add up as it always does.

jerromyjon said:
1/2 reduced Planck spin? This isn't really a "frequency" in a natural sense. If it were, Bell's Theorem would explain reality as marbles bouncing around and the universe wouldn't add up as it always does.

Yes, 1/2 reduced Planck spin sounds like what was being referenced. So a different type of "frequency" then (not a natural one)..

desta41 said:
So a different type of "frequency" then..
desta41 said:
it is a frequency related to the Schrödinger equation
Yes, and I can't stress enough that these "frequencies" have nothing physically or mathematically in common with classical frequency except geometry in a sense, in that they behave like waves.

jerromyjon said:
Yes, and I can't stress enough that these "frequencies" have nothing physically or mathematically in common with classical frequency except geometry in a sense, in that they behave like waves.

So, perhaps the best way of understanding this is that it's a wavefunction which spreads out through space and "vibrates" due to angular momentum, but it never moves in a classical sense.

desta41 said:
So, perhaps the best way of understanding this is that it's a wavefunction which spreads out through space and "vibrates" due to angular momentum, but it never moves in a classical sense.
Sounds right to me.

jerromyjon said:
Sounds right to me.
I should have thought that plasmon resonances are electron resonances as you describe. I believe the red colour of copper and the silver colour of silver are caused by these resonances.

What is the vibrational frequency of electrons in atoms?

The vibrational frequency of electrons in atoms refers to the rate at which the electrons vibrate or move around the nucleus of an atom. This frequency is determined by the energy level of the electron and the strength of the bond between the electron and the nucleus.

How does the vibrational frequency of electrons affect the properties of atoms?

The vibrational frequency of electrons plays a crucial role in determining the physical and chemical properties of atoms. It affects the atom's size, shape, and reactivity, as well as its ability to form bonds with other atoms.

What factors influence the vibrational frequency of electrons in atoms?

The vibrational frequency of electrons is influenced by several factors, including the number of electrons in an atom, the atomic number, the distance between the electron and the nucleus, and the strength of the electron-nucleus bond.

How is the vibrational frequency of electrons measured?

The vibrational frequency of electrons is measured using spectroscopy techniques, such as infrared spectroscopy or Raman spectroscopy. These methods involve shining light of a specific wavelength onto the atom, which causes the electrons to absorb or emit energy at specific frequencies.

What is the significance of understanding the vibrational frequency of electrons in atoms?

Understanding the vibrational frequency of electrons in atoms is essential for studying and predicting the behavior of atoms in different chemical and physical environments. It also has practical applications in fields such as materials science, pharmaceuticals, and nanotechnology.

• Electromagnetism
Replies
4
Views
2K
• Electromagnetism
Replies
11
Views
4K
• Introductory Physics Homework Help
Replies
17
Views
774
• Electromagnetism
Replies
14
Views
6K
• Chemistry
Replies
1
Views
2K
• Other Physics Topics
Replies
14
Views
2K
• Classical Physics
Replies
4
Views
2K
• Quantum Physics
Replies
16
Views
2K
• Special and General Relativity
Replies
51
Views
3K
• Introductory Physics Homework Help
Replies
2
Views
1K