How to Write Electron Configurations and Orbital Diagrams

[trsnskv]

brooklyn college anyone?

[50817bigb]

why did you skip 3d in the calcium example?

[wi11y007]

how many boxes under d's?

[mysstring1]

last question, when would we need to use boxes to draw electrons in and why are the electrons placed in opposite directions? does it suggest that in reality, electrons always spins in PAIRS and never collide?

[AndrewTeacherNSCC]

@mysstring1 They never collide. They have the same charge & so repel each other. They aren't really spinning, they have properties of "spin". They need to be opp in an orientation or the atom could have overall angular momentum (meaning it could "roll away". Think about a bike with both wheels rolling the same way, it moves, if you could get them to spin in opp directions it would stay still. Atoms "stay still" so their electron spins need to be opposites. This is only an analogy)

[mysstring1]

what does it mean by s have 1 orientations and p has 2?

- what does quantum number mean in this orbital theory^^ thanks

[AndrewTeacherNSCC]

@mysstring1 the quantum numbers represent the different states the electron can be in. They are a way of describing the electron since they don't have familiar qualities like "colour" or "size".

[mysstring1]

hi~ I have a question, why do we fill one electrons into each box first before we add on second ones? why can't we just put 2 electrons in the first box, then spread the remaining ones out? could you give me a detailed explanation please^^

[AndrewTeacherNSCC]

@mysstring1 It's complicated is my best answer. Electrons in an atom are required to be in different states (these are what the quantum numbers means or describe) in the same way 2 people need to be in different seats. 2 people (or any object for that matter) cannot occupy the same space. Electrons of the same spin (a type of state) need to be in separate orientations so that gets filled first. Once they all have 1 electron, opposite spins (a different state) can can join them.

[pinkk4evr]

AH THANK YOUUUUUUUUUUUUUU!

[INvertedFR05T]

I don't get from going down the list you get 2p6 When carbon was 2p2

[AndrewTeacherNSCC]

@INvertedFR05T sorry, can you clarify?

[MrChuy816]

wow man thanks you really helped with the bus explanation :D

thank you

[HaHaHAHungry]

great video thumbed up and faved. very informative and i learned all the information i needed without rewatching. Keep up the good work

[flubberjibbel]

thank you!!! this was so helpful!!!!!

[MiriamsMakeup]

Thanks so much! I'll be thanking you when I get an a on my midterm!!

[tawfiqnsair]

Thank you alot my friend i used to have some issues but now it looks clear! i hope i pass the exam tmrw

[34defence]

Hey thanks alot. Now I don't have to use the table anymore.

[meme91x]

thank you;*

[Itshardtopronuncius]

saved my life. thanks alot! very easy to understand

[joannayejinkim]

My new life.....-3 i have a big test tomorrow thanks A LOT

[flavaslaya1]

help full (y)

[18Zac1992]

Thanks, great job, so simple, wish my lecturer knew how important it is to be concise!

[agirlbutnotgirlish]

heyy....guys...ihve an easier method...its like

s sp sp spd spd fdsp fdsp (jst rember dis sequence n put no accordingly n jst rmbr 1 thing dat p starts 4m 2 orbital n d 4m 3 orbital.n f starts 4m 4 orbital...)

1s 2s2p 3s3p 4s4p3d 5s5p4d 4f5d6s6p 5f6d7s7p

[december120994]

omg thanks so much man. i really appreciate you doing this!!!!!!

[bern20100002]

.i already forgot my Chemistry when im in College, i hav Chem again and i just nid 2 remember this mnemonic guide and i found this tutorial and i can say its simple but Very Good!! Thanks it help a lot!!:) 

[xcdrummer19]

For the p block, why can it only hold up to 6 electrons when the actual number of valence electrons goes up to 8?

[sabazahra95]

@xcdrummer19 because there are only three sub p

Px Py Pz

[kirbyslaugh71]

Thanks, i have a huge test tomorrow and this video made it all click

[StellsBerry]

btw it helped me alot and thank you so much!

[StellsBerry]

hey i have a question...that in 3rd shell there are 3 sub shells s p d.when you were like putting electrons in calcium why u didnt put the last 2 electrons in d sub shell and instead u put them in s sub shell of 4th shell?

[AndrewTeacherNSCC]

@StellsBerry Hi, basically 4s is a lower energy than 3d (even though 3 is a smaller number than 4). The reason we need the diagram to help remember the order is that it is not as straight forward as it seems. This is a short answer but scroll through the comments to get more detailed answers as this has been asked before. Good luck!

[qd4anton]

thank you very, this video helped me alot...very very simple to understand..

[xBoXaDdiCTiOn1]

thank u, u just helped me with my homework lol

[mo15hassan]

thanx, that was quick and easy!

[CindyRoxc]

Thank you soooooooooooooooo much only vid that i understood

[pianoman1928]

Much thanks!!! Great video, clear and to the point

[jasshollicrombie]

i wish my teacher could teach like this

[Trollsaurus]

THANK YOU.

[amorosoal]

how come 3d is usually skipped?

[AndrewTeacherNSCC]

@amorosoal Remeber the rings you drew that held 2 then 8 etc.. electrons when you first learned about atoms? Those represented energy levels. Then you got into this stuff and learned they weren't rings at all.  Basically the 3d orbital is like a higher ring than 4s so it doesn't get filled up until later. You would think that a principle quantum number of 4 would be higher up than all 3 but it isn't. That's why you need to use thediagram to rember the atual order they fill up. I hope this helps.

[lansingmanor]

"Uh... You need more..." FIN - Hahaha! Excellent job, mate! It took 5 minutes over 2 hours of lectures!

[Eligar16]

THANK YOU SO MUCH

[itsznuchiibiotxch]

thank you so so much

[rahrahritaa]

using the periodic table for this is so much easier..

[hugolopez12345]

thank you sir. very helpful

[BigGib777]

i love you

[ninjakid09]

helped alot ty

[TheJleigh90]

this video helped a bunch, thankss!

[gormthedestroyer]

Why can't my chemistry book explain things this clearly? This six minute video helped more than two hours studying the chapter. And the book cost a hundred fifty dollars. Go figure.

[xniks101x]

My teacher said we fill one up on all the boxes, not just on "p" before doing the second....

[AndrewTeacherNSCC]

@xniks101x Your teacher is right! Since s only has one box you if it has 2 electrons you just fill the box. For p, d, and f you fill each box with one electron until each box has one before adding a second electron if needed. Good Luck!

[rachellauren996]

how do you know how many boxes to put under and how many arrows and which direction they point?

[AndrewTeacherNSCC]

@rachellauren996 boxes represent orientations. s have 1, p have 3, d have 5 and f have 7. You put in arrows one box at a time (not 2 in one box unless all the other boxes for that orbital already have one in them). It doesn't matter if they are up or down when there is only one in a box but when there are two they need to be opposites.

[Mr1Swagga]

My chem teacher should have just pulled this up in class. Would have got it Asap. Thanks yo

[LivanReyeg]

Thanks! It helped alot. :D

[ThreeDaysGrace021]

Thank you! This was helpful!

[airsoftguy724]

thank you hopefully i will pass my test tomorrow on this

[Crintumz]

YOU ARE THE REASON I HAVE SUCH AN EASY TIME IN MY 2 SCIENCE CLASSES WHEN IT COMES TO ELECTRON CONFIGURATION :P

[NeoShadowWhisppurrs]

What about the following elements after Calcium?? Since the "p" can only hold 6 you would move of to the following "d" which makes since because the next element which is Scandium thats in the d-block, Im really confused on how I would do that as far as electron Configuration? Any help of suggestions? So far I got 1s2 2s2 2p6 3s2 3p6 4s6 but I need to add one more electron so would it be 4d1???

[AndrewTeacherNSCC]

@NeoShadowWhisppurrs continue to follow the order of the diagram. You can't have a 4s6 s only hold 2.  The ec for Sc would be 1s2 2s2 2p6 3s2 3p6 4s2 3d1 see the other comment responces for why 3d follws 4s. Good luck!

[NeoShadowWhisppurrs]

@AndrewTeacherNSCC Oh, yes that was just an error. Thanks so much! We're on trends now!! :(

[GodKiller97]

Thank God for you and making this video. I was absent last class and this video helped so much.

[alixwithani12]

Very helpful! Thanks!

[MiLiberator]

thank you so much

[ulquiorradesu]

This helped me a lot. My chemistry teacher did not take the time to explain this, and instead had us immediately abbreviate the electron configuration using the noble gasses. So C would be [He] 2s^2,2p^2 and Ca would be [Ar] 4s^2. He showed the diagram you showed at the beginning of this video at the END of his lecture!

[tomdevine6]

thanks v much made this much easier to understand... I have a question though... you know the way chromium and copper donate an electron from the 4s orbit to the 3d orbit... why doesn't the same thing happen with chlorine where 3s would donate an electron to 3p?

[AndrewTeacherNSCC]

@tomdevine6 Not sure on this one.  Let me know if you find out. I'll do the same. Good luck!

[jmoneyATL95]

THANK YOU SO MUCH

[1964Loukas]

@MashHanny Each arrow in the box represents an electron...electons like to exist in orbitals in pairs...one arrow up and one arrow down represents the electons "spinning" in different directions within the orbital...any orbital.... representing "stability"...when unpaired electrons are present....the atom/element is not stable...it has a charge and it can react with other elements/molecules to complete the pairing of the unpaired electons...thus making it stable and non reactive.....

[zammy99str]

you suck, i was trying to find how to do electron configuration for F block elements. Seems like no1 knows how to do that shit

[ptrcvrz]

omg thank you! :-)

[tabo83]

This is my third time doing chem...it's just now that you made my understand this concept.. PHEW!!!!

[dpsfairy]

thnx.. my concept got finally cleared!!

[DesmondtheRhino]

Thank you so much, I missed the lesson in class on this and it seemed so confusing, but now understand it :D

[hi2anyone]

Thanks for making the video :D I thought it was more complicated than this at first XD

[seahawkslakersfan24]

perfect video thank you

[CanineHen]

thank you so much :] this was very clear and concise

good job!

[drgon41094]

thank you so much! Now i feel a lot more confident about the test thats coming this tuesday on Electron Configs and Oribitals! :) thank you AndrewTeacherNSCC!

[601princess601]

i was soooo nervours about taking the acs standardized exam esp since my instructor just flew through the chpt on electron configuration!!!thanks so so much!!i now understand

[angelliz001]

holy shit i get it!!! i have watched 100 videos on top of lecture and I finally get it! thank you!

[Bassplaya114]

good job explaining man I wish I looked at this sooner! keep it up

[sandrayzn]

you made this so simple..was piniking for a sec..thanks



[Q4554]

Question how come for Ca configuration you went from 3p^6 to 4s^2 instead of 3d^2?

[AndrewTeacherNSCC]

@Q4554 electrons don't fill all the orbitals in a principle energy level before moving up. The 4s orbital is actually at a lower energy than the 3d orbital and electrons will fill the lower energy orbitals first. This makes ordering them less straight forward since you would assume 3d is lower than 4s but it isn't. That is why drawing the diagram with the arrows to start is a good idea since it gives the real order in which electrons fill orbitals.

[adamomars]

@AndrewTeacherNSCC its nice that someone actually understand the material their attempting to explain on you-tube. or have at least took the time to adequetly prepare for their video. Thanks dude!

[ssiegert12]

im an idiot, i carry a C average in chemistry... yet you explain this and make it so easy....

[iheartdacookiemonsta]

thank you! I didn't understand how to do this cuz i was away and have a test next week, so this was excellent and i love you forever!

[dollarbill11]

you explain it from the root man, they don't do that in chemistry.......thank you

[Maximizer1407]

Wow, I could never understand this in my chemistry class but when I watched this video I understand now! Thankyou so much for helping me understand! Seriously, I have a test tomorrow on this!

[akoMEGhan]

:D I learned how to do this in a 4 minute youtube video!!!! My Chemistry teacher went on for 50 minutes about this and I was totally lost that I didn't even pay attention anymore. If only more Chemistry teachers/professors made it this simple!

[AndrewTeacherNSCC]

@akoMEGhan I'm glad it helped, but pay attention in class! (Don't forget I'm a teacher!). There is more to this than my simple video so it is important that you get your 50 minutes worth from your teacher. Good luck with the rest of the course and thanks for the kind words.

[mansoor619]

@akoMEGhan me too dont open the books...heads straight to my dear YOUTUBE:D

[zeosrule]

@akoMEGhan I know same here *mumbles "Stupid Dr. Light"* Thanks for the help Andrew

[chinmay52]

can you tell the orientations for all s, p, d and f??? why do you draw 3 boxes below s?

[chinmay52]

 sorry i mean why do you draw 3 boxes below s????

[AndrewTeacherNSCC]

@chinmay52 You only draw 1 box below s (sorry if that's unclear in the video). s is shaped like a sphere which looks the same anyway you look at it (picture a plain ball, when you look from the top, side ,etc. it always looks the same, 1 orientation). You draw 3 boxes below p because they have 3 orientations (meaning 3 distinct ways of looking at them. Take your pen and hold it sideways, up/down and then with the end pointing right at you. That's 3 different orientations). d have 5, f have 7.

[spaz84335]

I have a quiz today in Chemistry 105 and this totally helped me understand this better! Thank you!

[AndrewTeacherNSCC]

@spaz84335 great! Glad it helped!

[Puz123CP]

Chemistry sucks



[a192589]

Just one question...how do you go from 3p to 4s??? What happened to 3d??

:

[keatross]

@a192589 The D orbitals are added in 1 later than you think they should be. You only start filling 3D when you are done filling 4S and 4P first. It's weird, i know, and there is a reason for it (setup of the periodic table) but i forget.

[wasitthat]

this would be so much better if you knew what a vu meter or signal distortion was...

[4motive]

Thank you

[sharmin801]

thank you very much! that was helpful

[floppycooldog]

Chem class could be fun if they would just explain shit like this slow and easy so you can Fing understander it. Thanks man!

[milkyway1527]

oh my goodness...thank you so much.Why cant they just tell us that in class?ugh! Thank you so much!!!!!!!!! I have a quiz on this soon..if it werent for this video i would still b compleely lost!!

[JohnnyEatYou]

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[51creampuff]

Thank you so much. It really helped A LOT.

[taratumble23]

This really helped. Thanks :)

[Pheanx24]

Thanks you so much very helpful and very clear..tnx:)

[username3257]

thank you so much this was very clear and helpful