Fine Structure of Hydrogen

[JChannelJ]

Thanks, that was very helpful. Hard to find a good explanation on the internet.

[lorenwilson]

Since the electron does not spin, what is going on at the atomic level? Electron spin is just how we describe this property since a macroscopic object with charge that is spinning does this in a magnetic field. However, the electron is not actually spinning although it does have a small magnetic field.

[babajideodusanya]

in short. the spin-orbit interaction causes splitting of 2P energy level into two. 2P(3/2) and 2P(1/2) which are very close in value.. *Fine structure*

[hajarmouqadem]

thanks a lot, it was extremely clearly explained

[KENACT]

Some things that are unclear. Is there an equal probability that the electron will be plus 1 or minus 1 in spin, leading to an equal probability of either spectral line, or is one line more common than the other? When an electron jumps to a lower orbital, does it give off one line or both? The reasoning behind that question is that if multiple jumps lead to the dual lines, that means the lines, if animated at insanely high speed, would appear to flicker. Also, if one electron jump leads to both lines, would that mean two photons of different energy released from one electron in one jump? Here your examining the hydrogen atom, but with heavier elements, if there is an odd number of electrons in the shell, would the lines of different frequency be unequal?

[nathanabbou]

Very interesting ! One thing I didn’t understand : why aren’t there also 2 states for the 1s orbital ?
And also, isn’t there a 2s orbital in between offering more energy lines ?

[alirazaasadkhail]

A very very good lecture sir, so much appreciating lcture sir. Many many tnx for explainig such a complicated topics. Again tnx

[johncgibson]

Very nice lecture. But this level of terms only comes to a viewer if he/she has extended experience. These are secondary effects of seeming simple things interacting with simple things. Electrical engineering experience will be a good start.

[Krypton]

Thank you so much Sir for explaining this topic Great job now I will write your lecture in my exam paper 🙏💞🌹

[Goldslate]

So where exactly is the electron? (I mean, it's in the p subshell, alright. But when it transitions to give the two spectra lines, is it transitioning from the P1/2 and P3/2 states at the same time?)

[johncgibson]

Interesting. I had always thought that the 2 spin numbers have the exact same energy on the hydrogen system. Guess it's more complicated than what I thought an hydrogen atom was.

[beln]

The content: excellent explanation. Presentation: a little slower and no so loud, would make it perfect

[Burningarms]

Very helpful! This helped me solve an atomic problem sheet or two!

[QAhkam]

Thanks, that was very helpful.Very nice explanation.

[chandus]

Can you please explain to me what will happen if this state is placed into an external magnetic field? From what I understand, the 2P(3/2) state will again split into -3/2, -1/2, 1/2 and 3/2. Same thing will happen to the 2P(1/2) state. It will split into -1/2 and 1/2. Is this correct?

[amandhindsa]

if there is a single electon it can either spin up or down either +half or -half i.e electron will revolve clockwise or anticlock wise but then how can a single electron can have two spin +half and -half at a single time interval how can we consider two spin's? PLEASE ANSWER MY QUE.

[sanketdave]

liked these videos..
but one question is that what if proton(as we assumed orbiting the electron) is moving with some constant speed, maybe it will create constant magnetic field, so won't the spin angular dipole moment aligned at one moment? then how will it keep rotating?

[johncgibson]

The electron spin generates a magnetic field that disturbs the electron itself. Oh my.

[Jarrod_C]

If you have only one electron why do you have two emission lines? You didnt explain how you have two emission lines with only one electron. That connection of how this is possible is not clear

[triniketom]

Thanks, never expeced on my cell, TT