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Electronegativity | Atomic structure and properties | AP Chemistry | Khan Academy 

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Electronegativity is a measure of an atom's ability to attract shared electrons to itself. On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group. As a result, the most electronegative elements are found on the top right of the periodic table, while the least electronegative elements are found on the bottom left.
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12 июн 2014

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Комментарии : 172   
@hahahitskelsey
@hahahitskelsey 7 лет назад
This video helped so much. My teacher sucked at explaining it! Thanks dude!
@ahmadjutt5910
@ahmadjutt5910 3 года назад
Really...
@vedant4576
@vedant4576 6 лет назад
when you learn more in a 10 min vid than a whole semester worth of work ............
@miltonhoward1770
@miltonhoward1770 5 лет назад
Vedant Subramanian on god
@shelbyo8838
@shelbyo8838 5 лет назад
Oh yeah yeah
@jay24s15
@jay24s15 4 года назад
My teacher is so useless
@megakangaroo5665
@megakangaroo5665 4 года назад
@Cheewe Tell that to my 8th science teacher who gave us all hands on activities and actually taught us unlike a lot of teachers.
@tapasmazumdar
@tapasmazumdar 4 года назад
SourLem0n you shouldn’t say what if someone else says that about your parents
@ThrEEleggedFilipino
@ThrEEleggedFilipino 8 лет назад
If you wrote textbooks.....
@Neel-ff4mn
@Neel-ff4mn 7 лет назад
It would be an e-book, with pictures translated via spectrogram.
@guddabuggle7858
@guddabuggle7858 2 месяца назад
they'd be endorsed by the British education system
@MasterZiomekPL
@MasterZiomekPL 5 лет назад
Would you like a job in Ireland? My boring Chemistry teacher would love to be anywhere else.
@fiqo4479
@fiqo4479 4 года назад
Thanks i missed some classes and suddenly i didnt know ehat was going on this realy helped and made it easy to understand
@daHorseLovr
@daHorseLovr 10 лет назад
Because noble gases are just happy! haha! Thanks this helps a lot for AP Chem!
@imaazillyas1122
@imaazillyas1122 7 лет назад
just shut up
@Me-hu9br
@Me-hu9br 4 года назад
@@imaazillyas1122 f u 2
@celibaganesan1083
@celibaganesan1083 4 года назад
Wowwwww.....great explanation..... Tq so much for the video
@schizophrenicarguing1365
@schizophrenicarguing1365 7 лет назад
This video couldn't have been any better. Thanks!
@hongkongsmartboy
@hongkongsmartboy 4 года назад
Electronegativity (Withdraw a electron in Molecular state): F > O > N > Cl Electron Affinity (Withdraw a electron in Atomic state): Cl > F > Br > I
@mehuljain1991
@mehuljain1991 4 года назад
It is more like F>O>N=Cl
@hongkongsmartboy
@hongkongsmartboy 4 года назад
Mehul Jain Tiebreaker, N> Cl due to smaller atomic size
@BOGObiology
@BOGObiology 7 лет назад
WHERE WAS THIS WHEN I WAS AN UNDERGRAD?!?
@finnbladehd
@finnbladehd 6 лет назад
Maybe your context was kinda outdated.
@chissstardestroyer
@chissstardestroyer 2 года назад
Well, about the periodic table: you would be getting more electronegative as you go towards your right while looking at the table facing properly; with the exception of the noble gases: those guys are perfectly balanced about electrons and protons as a rule.
@lizg6389
@lizg6389 8 лет назад
Thank you, this video was very helpful :)
@tanishkulkarni7958
@tanishkulkarni7958 3 года назад
thank you sir for such a goof explanation straight and easy to understand than textbooks!
@anonymousliar2661
@anonymousliar2661 8 лет назад
thanks im currently revising chemistry and came across the definition of electronegativity but didnt understand it but i have now thanks to this video big thumbs up 👌
@abishekaseneviratne1036
@abishekaseneviratne1036 7 лет назад
thank you very much helped me understand these easily! keep up the good work
@kgamesekoto7221
@kgamesekoto7221 5 лет назад
You are the best. Thank you very much. May the good Lord Bless you 🙏
@marcusrossen7142
@marcusrossen7142 2 года назад
thanks man, really helped
@NurseShelly88
@NurseShelly88 10 лет назад
Thank you so much! Your videos are always super helpful!
@wajihasaif7393
@wajihasaif7393 7 лет назад
I never understood the group trends but now I do thanks to you
@thebeesknees3518
@thebeesknees3518 7 лет назад
Thank you so much for this video. I have a chem test in two days about all the periodic trends and I missed one day due to being ill so i missed this lesson. I heard my teacher explain it a bit but I couldnt fully understand. This helped so much!
@claudiaperretta6249
@claudiaperretta6249 3 года назад
Thank you! You're the best!
@amrobay152
@amrobay152 2 года назад
this Video is one of the best videos i EVER seen among all scientific disciplines , WOOOOW
@myagrimm4719
@myagrimm4719 Год назад
This helped me so much, thank you!!
@randomgirl5596
@randomgirl5596 7 лет назад
This video really helped me, thank you !
@Emilynn-rose123
@Emilynn-rose123 9 лет назад
great refresher.... AWESOME JOB!!! ....
@Hemant_Gupta
@Hemant_Gupta 7 лет назад
u r my fav khan. TY FOR MAKING VIDEOS SO GOOD.😁👌
@clairenime
@clairenime Год назад
this helped. Now I understand why that is more electronegative going up.
@29no
@29no 7 лет назад
thanx for explaining the trend of electronegativity,thanx a lot again
@yellowtree9350
@yellowtree9350 7 лет назад
Wow thanks for the great video. Bless your soul
@2ndwednesday
@2ndwednesday 6 лет назад
Fantastic video, thank you!
@jadeponder8923
@jadeponder8923 8 лет назад
Great video! Thank you so much :)
@sophiasander6026
@sophiasander6026 6 лет назад
Just wondering where in the video you talk about Electron Affinity?
@Stella_louiseW
@Stella_louiseW 7 лет назад
dude i thought i nevr cd undrstand these..but u made me do it in a jiffy
@vrushaliramila7421
@vrushaliramila7421 5 лет назад
How old are you
@originalname680
@originalname680 4 года назад
Vrushali Ramila shut up vvvvv
@AeraxFX
@AeraxFX 6 лет назад
The one concept that my teacher didn't explain well. Thanks!
@ruata1719
@ruata1719 7 лет назад
very very clear. thank you sir
@chissstardestroyer
@chissstardestroyer 2 года назад
So, Mr. Khan; astronomy *is* in fact a good and functional lens for atomic chemistry in that the further away an electron is from its nucleus the more likely it is to be snatched away, whereas this is similar to planets and stars- but it is a *very* limited analogy.
@MARIO88400
@MARIO88400 8 лет назад
thanks ! excellent explanation !
@tamaraterherst6794
@tamaraterherst6794 4 года назад
How do you know the value of the electronegativity?? So you can know if a molecule is polar or no polar
@flow4458
@flow4458 3 года назад
Look at the trends! They are right almost every time. Also, you can see them in most periodic tables!
@guddabuggle7858
@guddabuggle7858 2 месяца назад
If a molecule has lone pairs of electrons, it's polar. Otherwise it's non-polar. In water, oxygen has 2 pairs of lone electrons, and so it is classified as polar.
@chissstardestroyer
@chissstardestroyer 2 года назад
Well, electrons would be zipping all over the place around the nucleus of the atom in three-dimensions, so it would be seen as a blur; why wouldn't it? They'd be moving incredibly fast and are very miniscule, and atoms are almost entirely empty space to begin with.
@alexx4761
@alexx4761 6 лет назад
Thanks so much for your videos - your explanations are well constructed, paced and they're mentally accessible. I really appreciate all you've done in the past years!
@Antropovich
@Antropovich 10 лет назад
So this is why the column of 1A from Soduim to Cesium is so reactive. And that Cesium practically explodes when you throw it in water.
@william42279
@william42279 9 лет назад
Antropovich You should see francium when you throw it in water
@bjornbuckley
@bjornbuckley 2 года назад
Is it possible to make a noble gas more reactive by bombarding it with radiation such as alpha particles or positrons? My reasoning is that the mentioned forms of radiation could rip valence electrons away from the noble gases, turning them into ions. Is this a valid idea?
@jerrinmathewgeorge4186
@jerrinmathewgeorge4186 5 лет назад
Why does hydrogen stick close next to other hydrogen
@infomotive_007
@infomotive_007 7 лет назад
thanx for making chemistry easy
@marcoscarballal5407
@marcoscarballal5407 8 лет назад
Thank you so much!
@snapdr4g0nz
@snapdr4g0nz 3 года назад
Thanks, love you Sal.
@isurieshani3719
@isurieshani3719 3 года назад
Thanks ❤️❤️❤️
@jonbovi-69
@jonbovi-69 6 лет назад
I don't regret subcribing to your channel.
@susanh2523
@susanh2523 5 лет назад
this is very helpful God bless Khan Academy
@tianganghuang3809
@tianganghuang3809 7 лет назад
why is this video in two times for the SAT Chem Subj playlist?
@thanumanohar5565
@thanumanohar5565 7 лет назад
most helpful study chanel
@juansanchez4892
@juansanchez4892 8 лет назад
Thanks!
@cboisandlin9601
@cboisandlin9601 3 года назад
me not paying attention to this video tha I am watching because I wasn't paying attention in class... I'm probably gonna fail chemistry
@jebgarcia8009
@jebgarcia8009 5 лет назад
Awesome
@kiara4345
@kiara4345 5 лет назад
It is cool when your first language is spanish and you are studing chemistry in english
@sammobiswas8554
@sammobiswas8554 8 лет назад
like this very much.
@debralynnpaxton5238
@debralynnpaxton5238 10 лет назад
Cool presentation :D
@ayaandanish
@ayaandanish 8 лет назад
Thanks a lot man u r a proper legend! Keep doing what you do coz u r getting through my freakin O' Levels! xDD
@dionapril9631
@dionapril9631 6 лет назад
Ayaan Danish I got through mine with these videos.... Now working towards my AS with them again
@roman20353
@roman20353 8 лет назад
Nicely explained sir. Thank you!
@kek3539
@kek3539 8 лет назад
Cool edit on the profile pic, bruh.
@roman20353
@roman20353 8 лет назад
+LeChat Noir its no edit its legit mate #legit #saynotosteriods #hardwork
@reginetolones1401
@reginetolones1401 3 года назад
What is the Electronegativity value of Iodine gas?
@arshiatalebi3217
@arshiatalebi3217 3 года назад
Its 2.5, the electronegativity also decreases going down group 17
@softshellturtle5873
@softshellturtle5873 6 лет назад
What exactly is the formula
@kovesh8979
@kovesh8979 4 года назад
This is like a life lesson. Love it.
@taskeentori9883
@taskeentori9883 6 лет назад
Thank you sooooooooooooomuch.
@vennesajanet9545
@vennesajanet9545 3 года назад
Definitely passing my pharmacy cat after watching this
@burhan5217
@burhan5217 10 лет назад
Do have to repeat what you write like a gazillion time. Btw amazing videos got me through my exams.
@ace_stealth251ace9
@ace_stealth251ace9 6 лет назад
Burhanuddin Salim lmao
@chissstardestroyer
@chissstardestroyer 2 года назад
So, what we really should think of measuring in this is the quantity of protons and the closeness of the protons and the electrons above all, eh?
@mashedpotatus2017
@mashedpotatus2017 6 лет назад
Hey you used the Lewis dot structure :)
@shineydspo3833
@shineydspo3833 2 года назад
Thanks
@eminn_
@eminn_ 2 года назад
thanks
@renewilly3659
@renewilly3659 7 лет назад
How does Na have 1 electron in it's outer shell if the atomic # is 11? Isn't it supposed to have 11 electrons since protons and electrons are supposed to be balanced?
@SoundOfDaFunk
@SoundOfDaFunk 6 лет назад
Rene Willy Lol you find out valence electrons by group number not by atomic number
@guddabuggle7858
@guddabuggle7858 2 месяца назад
my guy, sodium has more than one shell. it has 2 in the first shell, 8 in the second, and 1 in the outer shell. they add up to 11.
@chissstardestroyer
@chissstardestroyer 2 года назад
So, this really means that these atoms positive charge is being measured, the greater the electronegativity present the more the positive charge thereof.
@evelinherrera2073
@evelinherrera2073 6 лет назад
THANK YOU
@hongkongsmartboy
@hongkongsmartboy 4 года назад
Which is more electronegative, N or Cl?
@tanishkulkarni7958
@tanishkulkarni7958 3 года назад
Cl
@anoopmanakkalath
@anoopmanakkalath Год назад
N. In NCl3, the computer modellings show the negative charges are residing on the N atom. Even carbon bears a negative charge in CCl4.
@vincentleong0511
@vincentleong0511 Год назад
One RU-vid video > whole year of lecture from school
@rushikeshdeshmukh983
@rushikeshdeshmukh983 9 лет назад
awsome
@jeromeadona4393
@jeromeadona4393 2 года назад
because they're just happy😀
@renewilly3659
@renewilly3659 7 лет назад
I don't understand why h2o has 6 valence electrons.... Like what the hell? And how does Li have a .98 electronegativity?
@billyedmoore
@billyedmoore 3 года назад
Legend
@jybhenri263
@jybhenri263 7 лет назад
Noble gases are very happy.
@amarprem9188
@amarprem9188 6 лет назад
aren't there any exceptions
@kalpak7368
@kalpak7368 10 лет назад
i prefer video black background
@whyjamz7152
@whyjamz7152 6 лет назад
How am I supposed to remember this... my test isn’t open note
@masumbiswas7846
@masumbiswas7846 7 лет назад
The distance of 'N' and 'Br' is same from 'F'..So this, are their electronegativities same??
@GioBaf
@GioBaf 4 года назад
the one that is higher up which is N
@hongkongsmartboy
@hongkongsmartboy 4 года назад
masum biswas F > O > N > Cl > Br
@veeralsolanki9901
@veeralsolanki9901 6 лет назад
But which atom is more electronegative? Carbon or phosphorus?????
@vidittiwari8482
@vidittiwari8482 4 года назад
Late response but phosphorus
@peacheramerika
@peacheramerika 7 лет назад
thank you! peace out!i know oxygen for sures is highest electronegativity ! cool I was oxygen for my Halloween costume. I loved oxygen and now I love it even more! I understand that going down row 1 sublevel as you get to sublevel two , three, four etc the electronegativity gets less. The least amount of electrons a element has it is more likely to give away an electron . the elements that are closest to completing their octet will want to gain take from other elements to have a full octet. cool beans
@anah6500
@anah6500 2 года назад
Why is there not translation for Indonesian? And i hope someday there will be a translation for Indonesian.
@user-Ityrirz
@user-Ityrirz Год назад
9:38 what some people might be looking for
@vishalfaujdar5481
@vishalfaujdar5481 6 лет назад
Have some modern style periodic table looks old
@MEGALecture
@MEGALecture 6 лет назад
For more chemistry lectures of A'Level and O'Level visit : www.fahadsacademy.com
@nesrinebaatchia7827
@nesrinebaatchia7827 4 года назад
💜💜💜💜
@mpvlogger247
@mpvlogger247 4 года назад
Nice jay hind🇮🇳🇮🇳
@ionasfinser1429
@ionasfinser1429 6 лет назад
doesnt oxygen have 8 electrons...
@SoundOfDaFunk
@SoundOfDaFunk 6 лет назад
Ionas Finser Lol?
@seanmiddleton2575
@seanmiddleton2575 2 года назад
Exactly! Where’s the other 2 electrons?
@fatinafiqah2547
@fatinafiqah2547 8 лет назад
Should cut off the unecessary explanation. Other than that everything is good :)
@BrainBuzzer
@BrainBuzzer 7 лет назад
Extra knowledge never hurts :)
@imaazillyas1122
@imaazillyas1122 7 лет назад
it always hurts
@creatingexperiments1008
@creatingexperiments1008 6 лет назад
8 likes for everyone-fight!
@pokerangerblue5084
@pokerangerblue5084 2 года назад
0:08 ayo 💀💀💀
@furyjaguar8034
@furyjaguar8034 2 года назад
Yeah close lmao
@comicbest2662
@comicbest2662 3 года назад
White page.. 😑
@DaesungMars
@DaesungMars 7 лет назад
god i hate chemistry
@TheBetito123
@TheBetito123 7 лет назад
I hate chemistry but love physics
@srimanmasanam6997
@srimanmasanam6997 7 лет назад
more than physics chemistry easy bro
@srimanmasanam6997
@srimanmasanam6997 7 лет назад
the explanation is confusing that's it . this concept is easy
@ishaanmanu7274
@ishaanmanu7274 6 лет назад
Daesung Mars because you are a fool
@selena-lo2vc
@selena-lo2vc 4 года назад
Ishaan Manu chill out mahn
@sabrinashultz9123
@sabrinashultz9123 9 лет назад
Can someone summarize this video in 4-5 sentences??
@Bonkbonk100
@Bonkbonk100 7 лет назад
No.
@atulj5155
@atulj5155 7 лет назад
elements which are closer to inert gases are most electro-negative. boom.
@plankalkulcompiler9468
@plankalkulcompiler9468 Год назад
4:29 amogus
@robertg3373
@robertg3373 8 лет назад
Too much detail, needs to keep it simpler.
@ashish1386
@ashish1386 8 лет назад
I think the guy repeats his sentenses because he himself forget what he recently said in last lines... Lol
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