Quantum numbers | Electronic structure of atoms | Chemistry | Khan Academy

[@YuryiDaBoss]

Khan Academy has never failed to dumb anything down to my level

[@saffrown]

you know the video is good when the comment section is flooded with thank you's

[@palacsintakat]

the angular quantum number can also be called Azimuthal quantum number. For anyone studying for mcats and things like that, I'm pretty sure that is the word used

[@starrysky1588]

palacsintakat I've read it's also called subsidiary quantum number

[@0hold]

Or secondary quantum number

[@starrysky1588]

WildCat AQW ohh thx didn’t know that before...just wondering if principal is primary.?

[@0hold]

Zahra Khan Nope

[@saileshpatra9463]

Yup it is n remembering that is difficult

[@ninjanerdstudent6937]

I swear by god, it took 3 hours for the professor to explain this in class and I never understood it. 12 minutes on here, and I got it. Understood. College is truly just for the credential.

[@meloniejen8400]

It's confusing but isnt this a grade 12 concept?

[@KT-ki8ik]

@@meloniejen8400 first year chem in uni covers this - I know cause I'm watching it rn to review for my exam tomorrow worth 53% of my grade :)

[@meloniejen8400]

@@KT-ki8ik *53% ?!!*

[@KT-ki8ik]

@@meloniejen8400 yep, all multiple choice too because profs can't mark hundreds of papers at the end of the semester so they do scantrons instead - so no part marks

[@meloniejen8400]

@@KT-ki8ikOOF, do you mind me asking what major is this?

[@justzach3204]

I am so happy this video exists, because my chemistry teacher doesn't even teach!!! I mean why even have teachers if they don't teach!?

[@nikodix]

Maybe they're cooking meth on the side...

[@jewelp4189]

UltraRockHamCake same here

[@verymadcitizen9798]

Same my professor doesn't do her job in my uni

[@bambibloggerfantage]

Amen! My chem teacher did nothing to explain this. I happen to be wracking my brain teaching myself 🙄

[@saminyasar22]

only to get money -- they don't teach for making u educated , they just teach only to get money

[@PinkPearlsForever]

THANK YOU!!! YOU ARE SO MUCH BETTER THAN MY TEACHER BLESS YOUR SOUL

[@leo-vr4yr]

UHG YES my teacher sucks- this guy explained in 12 minutes what my teacher would've taken an hour to! And I actually understand it

[@PinkPearlsForever]

+Shirley Z IKR!!! The struggle is soooo real

[@MonkeyDLuffy-xr4fl]

You deserve an award

[@macbeth9301]

Yeah! Sure

[@rajsrivastav_]

This concept was explained in the most brilliant way possible. Thank you so much Khan academy!

[@AaronTheRocker05]

I FUCKING GET IT!!

[@vaishnavkumars9261]

$$$$$$$$$$$$$$$$

[@getsmarttips2444]

i think u r a fool. if you have learned something from this video then thank them or say nothing. U shouldn't use bad words

[@vaishnavkumars9261]

***** its ok bro i just felt like typing something ,you know right . Lol!! just for fun i am sorry

[@lizn8412]

My prof explained this for 1 hour. I should have skipped class and watched this instead

[@ianjohns109]

i feel the same way. I often find youtube videos to be a whole lot more concise and informative

[@h32bro]

Lol yeah

[@cokezero8510]

they teach u this stuff in college this 9th grade chem in my school :/ ...

[@genevievevan8588]

i still dont get it

[@stoddardtutoring6733]

I explained this in shorter time and even spun a top upside down, for students that don't have such a toy. kzbin.info/www/bejne/g5K4f3dua9Sia7M

[@ShreyButle]

I'm getting the feeling that teachers either don't understand the material they are teaching or purposefully holding back because they know there are videos out there that will do their job for them.

[@sheldoncooper4204]

Shrey Butle well that or they just don’t know what their students know and don’t. Like they just assume that we understand it, because they’ve heard it like a thousand times. That differentiates teachers, it’s either they understand their students or don’t.

[@riteshreddy1871]

khan academy is the best each and every concept makes esier to understand

[@manasisingh294]

Exceptional explanation!! Really commendable..

[@navkaur171]

this makes a lot more sense to me than my book. thank you! i am literally mind blowned!!!

[@educationalservices2518]

Navneet Kaur good

[@alara102]

I GET EVERYTHİNG! I AM SO HAPPY THİS VİDEO EXİSTS

[@yasmeenahmed7989]

You've helped me a lot! God bless you.

[@averytwo1]

i got it during class then forgot over then weekend thanks for the review

[@user-xp7jb8hq4l]

wow this was an incredibly clear and easy to follow explanation! Thank you

[@shaleemn]

Very easy to understand! Cheers 👍

[@ntsuabxiong5755]

Khanacademy, you've saved my life! Thank you for explaining it so well! My teacher could not explain this at all!! Thank you!!!

[@Mac-xc7pt]

I watched this when I was a sophomore in general chemistry. As a junior in AP chem I finally found it, thank God. Same teacher from last year and barely just glazed over it.

[@anupamaaiyar8184]

The face who made me fall in love with chemistry and physics 😍💕💕

[@Brother_mar]

Great explanation

[@OfficialMarkZuckerberg]

My professor is of a foreign origin and is very difficult to understand. you always help me understand the things that aren't making sense, especially since i am deployed and dont have tutors access. You're the real MVP!

[@faitholm]

I gained more in a twelve minutes video than in an hour class. Thank you!

[@akunna1]

I never understood how all the quantum numbers and the diagrams were related until now! Omg you're such a life saver. :'D

[@ike_em_all]

I have my midterm in an hour THANK YOU SO MUCH!!!

[@illfaptothis333]

thank you. Holy crap why did i buy a textbook

[@Gargoyle-bc2ee]

may god bless your soul, I have a presentation about this tomorrow and I understood it from your video. you are a life savor

[@f8tal_156]

SOMEBODY GIVE THIS MAN A FUCKING MEDAL OR SOMETHING. HE EXPLAINED THIS WAAAAAAY BETTER THAN MY TEACHER IN LIKE 1/3 THE TIME GOD BLESS THIS MAN

[@jaydangoldstein2683]

My gosh we learned so much of this over the last 22 years, love it totally understand all of it!!!!! ;-)

[@divyabhanot9876]

@jaydangoldstein do you have any relation with E Goldstein??😊☺️

[@dhimanghosh3423]

I think that all chem. teachers should be like u this was very good for me

[@amanrubey]

Good one Your voice is sweet Especially when u say "space"

[@erzanabakiu7022]

You are a blessing

[@halaabuhayeh2426]

whoever explained this is just amazing

[@simran_kaur963]

thanx better than my own teacher i never understand them but u explain in best manner good haa

[@MuhammadYusuf-fo6lc]

Man, you are life-saving. Thanks

[@ahmedshinwari]

This chemistry topic in the light of quantum physics is enlightening. Thanks.

[@iceverything2000]

Thank you!

[@shemshedinusmael3016]

it's good explains on th the quantum number

[@snats15]

Brilliant. Exactly what I needed

[@tachyonhummingbird1107]

Thank you for putting into stable details that I could easily grasp,although I understand it before this by revelations and pictures in my mind instead of getting more deeper

[@rajanbista7800]

In magnetic quntum number for L=1, ml have 3 possible values ..Among them which ones are for Px Py and Pz??

[@whiteboardanimatorhamna]

Thank u limitlessly Khan Academy once again for making the topic the easiest topic in the world..

[@jemsboy3185]

I understood it even ckearer than einstein understood his relativity law by seeing this video. A boatful of thanks from me

[@0hold]

THIS VIDEO SAVED MY LIFE, THANK YOU SO MUCH

[@mistervoldemort7540]

Good video but I still hqve no clue why the spin is +0.5 and -0.5 and not just +1 and -1 or any other arbitrary opposite values.

[@bon.is.studying1187]

the handwriting is very very nice. i keep admiring it omg

[@cheyennevondrak7709]

Super helpful! Thanks so much!

[@adityamantri8984]

Someone give that man a goddam COOKIE!!!!!!

[@ajaynair428]

your are my zeus.... thank you. so much.......

[@vahidramazanov8463]

Thank you very much for such clear explanation

[@mishavarsanyi7693]

Thank you so much for this! It's very useful.

[@koushiksantra722]

It is great helpful video

[@vidhangoyal373]

Thank you! your video helped a lot.

[@arnaudjames4424]

Great explanation, thanks! Q: is there a mathematical number or term for quantum entanglement? Or a general mathematical formula combining n, l, ml & ms?

[@alexraz9]

You taught this better in 12 minutes than my teacher did in a 3 hour lecture

[@trenetae]

Amazing stuff!

[@sharadchoudhary2277]

Thank u very very very much you really helped me a lot thanx....😃

[@yashkapoor5894]

Brilliant buddy. Thank you bro!!!!

[@tandramandal6161]

khan academy is best in world ....

[@niclacoste]

How do you determine which values for the magnetic and spin quantum number to use if you have more than one option?

[@h32bro]

Thx a bunch man

[@nonameherecu]

Thank you so much Sir...

[@ashali6394]

your explanation was beautiful

[@abdullahmayan9189]

Awesome explanation!

[@belenc.l9773]

at this point i wish my teacher would assign khan academy videos instead

[@sallalokendran310]

Great teaching ! better than my teacher

[@mushymoss]

Great video! This saved me

[@hyunxzseu]

Teachers need to explain more

[@titan7924]

This is awesome

[@usmankeen5081]

Superb 😀😊😊😊😊❤❤❤❤❤❤❤❤❤❤❤❤❤❤

[@xoxoallied17]

Thank you so MUCH for uploading this! It helped a TON!

[@musaweriqbalmusaweriqbal9065]

Love you

[@ikmclasses9933]

A vry hlpful video..👌👌👌

[@cornbip4428]

I have a question If l =1, one of the possibilities is 0. Can the orientation be a sphere or is it limited to the three p orbitals?

[@hadeerrashad3497]

Excellent video!.

[@ichfan9811]

Thank a lot bro !

[@darthhp3386]

awesome things you have.. can you send the link of the video of khan academy's..that has abt derivation limits and integration of IITJEE level

[@hungariangymnast96]

the kaplan book says that (l) is the shape and number of subshells- is this synonymous with the shape of the orbital since the orbital is made up of these subshells? Like are these two different ways of saying the same thing..

[@vidhumoulib9653]

thnx its nice

[@naturematters08]

khan academy is the best

[@rumikhuwaja8708]

if n represents the shell and l is a subshell does that mean that the shape determined by the l value is adjusted to fit the restrictions of the n shell? what do the labels of shell and subshell imply? im confused

[@satyanarayan7980]

THANK YOU SO MUCH

[@bengrant449]

Thank you so much

[@emilstrkr3776]

What do the 3 first quantum numbers mean for fermions other than electrons?

[@TomAustinIII]

Cool!

[@omvithalkar71]

Can u plzz demonstrate magnetic quantum number for the "d" shell

[@donnionnyola1685]

thank u for this

[@rouiretiro1129]

I never thought I listened to my teacher for over 1 hour not knowing I could've just watch this -_-

[@karanpatil685]

good

[@cody2013west]

thankyou thankyou so much

[@keg1703]

So does Ml=-1 refer to Px orbital? ml=0 refers to the Py and +1 Pz? (for n equal or greater than 2)

[@tanvip4960]

Is it a must for the axis for x,y,z to be labelled as shown in the video

[@jennylynpan9311]

Can anyone answer this How many electrons are there for an element whose last electron has the following quantum number n=5, l=4, m=-2, s=-1/2?

[@xHaloxReviewerx117x]

What if the quantum number is 5? Or 7? The angular momentum number would be 4 for quantum number 5 (n-1) and 7 would 6 (n-1) so my question is what would the angular moment numbers be? For quantum number 5 would it be ;0,1,2,3 ?!

[@Quantiad]

Do you mean any 'integer' value, rather than 'integral' value?

[@user-ty2ip2nh1x]

Same thing! Used often

[@ninjanerdstudent6937]

Call it whatever you want. I was able to do my homework at last.

[@scottlynbyard7381]

BLESS UP

[@husnainajmal3346]

I actually was expecting you to go for n= 5 having 0 1 2 3 4 subshells...and draw something for f subshell and greater subshell.....anyways....a nice explanation indeed

[@elitecassidy8258]

Why can't professors explain stuff this easy?

[@cl03cl]

YOU SAVED ME !