Spectral Lines

[mynameisradar]

but wait, what if say an electron jumps from a n= 4 shell to a n=3 shell? and this repetion was stabalised by an electric curent. what colors would be emmited? in other words does an electron have to always return back to the n=2 state in order for it to emit a color? after all the texture of some lights aren't alway's one frequency. like white light for example as well as pink,cyan, moreno, purple, periwinkle seen in xeon lights and egyaption sunrise most commonly seen in street lamps.

[gwendance]

Actually, different numbers of electrons are in different shells. But you were right - 2 can fit in the INNER shell.

[Money7696]

in this video, the shells have been shown or the orbitals..?

[nupsyyy]

why/how/when does the electron jumps back to the ground state?

[cassiopeiaproject]

@nupsyyy An excited electron can jump back down into the ground state either through spontaneous emission or stimulated emission of a photon. In spontaneous emission, the electron's jump back into the ground state is predicted with known half-life numbers for each shell in each atom. In spontaneous emission, a passing photon can nudge the excited electron causing it to jump down and emit another photon. This is the principle on which LASERs are built.

[TehOwnerer999]

The electron shell theory in this video is outdated :(

The maximum number of electrons possible in a shell is 2n^2 where n is the number of the shell.

[cassiopeiaproject]

@TehOwnerer999 We are using the term "shell" in the video to refer to what some call "subshells". In this case each shell is defined by BOTH its n-value and its l-value (as is explained in the video). So only two electrons are allowed in each of these shells / subshells.

[TehOwnerer999]

@cassiopeiaproject Ok sorry about that then

[huenhanp102]

I agree with you

[azn6o4boi]

Wow, this 4 minute video clip gave me a greater insight to my understanding than 2 weeks in class.

[sidewaysfcs0718]

would its electronic configuration look like

for exaple 2s1 instead of 1s1 ?

[sidewaysfcs0718]

wait ...if hydrogen has only 1 electron ..does this mean its electron can jump several shells?

[cassiopeiaproject]

Sure, but this is true for all atoms, not just hydrogen.

[jellybeanlive]

Great Explanation!!!  .

[Neo712]

Very nice video, visually and in explanation.

[forman1200]

very good, but I was okay in understanding until the graph. Why don't lines from the n=5 shell to the n=2 shell appear on the left and not more on the right on the graph?

[cassiopeiaproject]

Hello, we don't quite understand your question, can you rephrase or provide more details?

[madderscientist23]

That is the best video I have seen on this topic. I am currently studying this on a Chemistry enhancement course. Thanks for posting.

[cassiopeiaproject]

The term "asymptotic freedom" can be used to describe the strength of the interaction between quarks. Interestingly, the strong nuclear force gets weaker as the quarks get closer together and asymptotically approaches zero strength at zero distance.

[skoch3]

Excellent video; using in my Physics102 class

[cassiopeiaproject]

Thanks. Please note a higher quality version of all of our videos are available on our web site and our highest quality version is available via ITunes U. Details for finding us on ITunes U are available on our web site. All downloads are Free.

[TrippnTroll]

Great vid, love this stuff!

[rozeboosje]

Poetry, sheer poetry.

[caydauden]

thank for posting, this is awesome