Periodic Table Trends: Ionization Energy

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  • Опубліковано 21 вер 2024
  • What an ion is. Using the periodic table to understand how difficult it is to ionize an atom.
    More free lessons at: www.khanacademy...

КОМЕНТАРІ • 365

  • @princesslava15
    @princesslava15 6 років тому +50

    "Well neon is completely satisfied, it doesn't wanna even deal with any of this reaction business and bonding business. It's like, 'Y'know what, I've achieved happiness in life.'"
    I have never related to an element more. I'd die for you neon.

  • @KawaiiChibi101
    @KawaiiChibi101 10 років тому +90

    You are the best thing that has ever happened for science and math students.

    • @player-B67
      @player-B67 5 років тому

      Do u have an instagram?? 😅

    • @andore8639
      @andore8639 Рік тому +2

      @@player-B67 cringe

  • @etiennelordeau8512
    @etiennelordeau8512 10 років тому +128

    This dude is better than my Chemistry teacher... Cheers!

  • @JamesSagerSC
    @JamesSagerSC 10 років тому +175

    Weren't you just teaching me calculus?

  • @Resanub
    @Resanub 13 років тому +9

    " You know what? I've achieved happiness in life, don't mess with my electron!" - Ne
    LOL! Making that into a shirt would be amazing. XD As a home schooled high school student, thank you for making science so much easier to understand. :)

  • @elisekana2170
    @elisekana2170 Рік тому +1

    This man just saved my life. Thanks so much sir youexplained a 2hrs concept in less than 12 minutes.

  • @itskiaxo
    @itskiaxo 11 років тому +2

    you are amazing. seriously i could spend 10 minutes watching one of your videos and learn more than what my teacher would teach me in a 2 hour class.

  • @kittykatgurll
    @kittykatgurll 9 років тому +250

    cations are pawwwwwsitive

    • @Carina-lc1fj
      @Carina-lc1fj 7 років тому +14

      That's so cute and memorable!!

    • @aahaanmalik7089
      @aahaanmalik7089 6 років тому +2

      shutcho uglyass up

    • @varsega
      @varsega 6 років тому +1

      What's got you all in a hissy fit?

    • @gigazaeem9542
      @gigazaeem9542 6 років тому +3

      My teacher said pussytive

  • @vivien4670
    @vivien4670 9 років тому +2

    Please never stop making your videos. They really helped me a lot.
    Thank you so much!

  • @sweetenergy
    @sweetenergy 14 років тому +1

    Where have you been my entire academic career? THANK YOU!

  • @RobertAnderson1
    @RobertAnderson1 10 років тому +91

    Does this guy teach everything?

  • @timreespt77
    @timreespt77 11 років тому +2

    I'm on the first year of a Nutritional Therapy degree and the chemistry is killing me. You are making it so much easier, thank you very much indeed!!

    • @dddaaa6965
      @dddaaa6965 7 місяців тому

      And now you have a wife, congratulations, my gf left me after 5 years without saying why

    • @Sam-fq1ho
      @Sam-fq1ho 3 місяці тому

      @@dddaaa6965 L

  • @asma4247
    @asma4247 10 років тому +2

    Thank you so much, Sal! Your videos have been helping me all through high school. Really, I don't know where I'd be without them, thank you.

  • @dragonfly3411
    @dragonfly3411 4 роки тому +1

    Wow , I used to hate chemistry because I couldn't understand any of it , but now it all makes so much sense!! Thank you Mr.Sal !!

  • @bpoole99251
    @bpoole99251 10 років тому +7

    Mr. Khan you really should talk about the dips between certain elements and their ionization energies because that is what most questions regarding this subject is asked... For the people who are wondering about this it is due to some elements having a valence electron in a lower energy subshell that is only half full as opposed to the following element having a full subshell. Thus a dip in energy needed for ionization.

  • @hedonism13
    @hedonism13 13 років тому +10

    I'm going to update my facebook status.
    "I've acheived happiness in life. Don't mess with my electron."

  • @HellDevil75
    @HellDevil75 13 років тому +1

    So freaking helpful. My teacher tried explaining it to me, but a lot if it went over my head. Watched this video one time, and it all makes so much sense!

  • @rhea.saupin
    @rhea.saupin 12 років тому +1

    this is so helpful!!
    can u actually believe i'm sitting in india studying this and i will totally ace my chem final!!!! thank u! :) :)

  • @habeebati1
    @habeebati1 14 років тому +1

    Very basic and easy to understand the concept. This is what I like for in a good teavher, someone who is able to put complex things into laymans terms. Thx for taking the time to make the video.

  • @FamilySmith
    @FamilySmith 14 років тому +1

    WOW! I loved your teaching! I just texted two of your videos on trends to all of my chemistry study pals. We are so grateful! Thanks a gazillion! You fill my outer shell with happiness and knowledge! Gracias! Danke Schonne! Thanks! Merci!

  • @xlwaiyiplx
    @xlwaiyiplx 15 років тому +1

    knowing the stories about each group and period of elements is easier than memorizing the actual ionization trend : )

  • @cesiameza961
    @cesiameza961 8 років тому

    This lessons are much better than the ones on Sapling learning!! I watch my videos on there and I’m even more confused, I come here and DONE I get it !!! thank you guys!!!

  • @eloofant
    @eloofant 4 роки тому

    Khan u are a life saver even after 11 years. THANK YOU

  • @aneesaislam3865
    @aneesaislam3865 10 років тому +24

    Thank you
    You made gibberish sound human

  • @paulceltics
    @paulceltics 13 років тому

    khan is better than 1 3/4 of my enr chem course. and learned more in 1 hour than like a year

  • @yadpreetcheema4806
    @yadpreetcheema4806 7 років тому +1

    loved what he said at 7:25 , understanding concept>>>memorization

  • @HyperStrudel
    @HyperStrudel 13 років тому

    I have always found anything related to science INTENSELY boring. but khan academy has seriously saved my butt examination-wise. I LOVE YOU GUYS.

  • @88yodnom
    @88yodnom 11 років тому +1

    8:26. Thank you for bringing this graph up. This answers so much.

  • @triggeredkook3957
    @triggeredkook3957 7 років тому

    YOU'RE A LIFE SAVER OMG. I'M SOOOOO HAPPY I FINALLY GOT THE IDEA OF THESE TRENDS!!

  • @saltykate9116
    @saltykate9116 7 років тому +1

    LMAO....I'm 42....and yes I'm currently discussing Ionization Energy. What a funny and accurate reference!

  • @e0n662
    @e0n662 4 роки тому +2

    So Neon and Lithium had a chat.
    Lithium: I am so sad. I want to release my negativity.
    Neon: I feel sorry for you. I'm happy and stable.

  • @MrFarkasOfficial
    @MrFarkasOfficial 13 років тому

    wow you've been helping me for about 4 years now with half of my subjects. i literally ow you my education.

  • @UlTrA2GaMeR
    @UlTrA2GaMeR 14 років тому

    Best teacher on the internet.

  • @sidneyducleroir1364
    @sidneyducleroir1364 9 років тому +45

    thank you. I would have failed my test tomorrow if it weren't for you

    • @midbell
      @midbell 6 років тому

      so how'd you do

  • @ahmedal-mudhi3198
    @ahmedal-mudhi3198 10 років тому +70

    Wallah. I swear to god and may allah bless you. Your amazing. My stupid arabian teacher teach like shit. And I come to you and ive under stood it better than the bastard at school. PLEASE KEEP MAKING MORE VIDS. Salam

    • @ahmedal-mudhi3198
      @ahmedal-mudhi3198 10 років тому +4

      ***** saudi arabia. My grand pa has never seen a car untill the 1960 lol. Fuck isis the infidels

    • @ahmedal-mudhi3198
      @ahmedal-mudhi3198 10 років тому

      ***** الله اكبر والنعم والله nicee uae. Iam actually from kuwait but not much people know kuwait. Lol so I just say ksa.

    • @ahmedal-mudhi3198
      @ahmedal-mudhi3198 10 років тому

      ***** the gulf countries are all the same shit. I can be kuwaiti and say iam from uae its ok cause we a family. But their are ass holes out thier

    • @HaxorDiva
      @HaxorDiva 10 років тому

      ***** It's offensive to mention "Allah" in a public commentary especially if you don't know his religion in addition I'm Christian so I know first hand myself how offensive it is... Don't want to burst your bubble nor upset you just throwing it out there but continue I don't mind. :/

    • @ahmedal-mudhi3198
      @ahmedal-mudhi3198 9 років тому

      Its ok man, I know you hate muslims its ok who doesn't these days, and I will respect your thought, I wont say god anymore. Lol

  • @curtpiazza1688
    @curtpiazza1688 Рік тому

    Thanx for bringing the Periodic Table to life! 🎉😊

  • @techn0pvd
    @techn0pvd 12 років тому

    holy shit... calculus videos AND you make chem videos?! dude, I should be paying YOU my tuition money for getting me through school since my junior year of h.s. up to now my freshman year of college.

  • @xxjanie182
    @xxjanie182 12 років тому

    You are the sole reason I am passing chem. Thank you so much!

  • @sansan36
    @sansan36 13 років тому +1

    @hockeymo due to the distance of this lonely electron from the nucleus coupled with the inner screening effect of the 3s and 2p6 orbitals for example, the protect the outer electron from the pull of the protons in the nucleus and so easier to lose :) hope that helps

  • @xpinkbabyy
    @xpinkbabyy 14 років тому +2

    Wow, I would love for him to be my professor. He's so hilarious and I can actually understand it!

  • @amalismail999
    @amalismail999 11 років тому

    Your are brilliant , you put shame to those chemistry teacher that spend 3 hour explaining. You do it so effortless.

  • @N0cturnalPr0ductions
    @N0cturnalPr0ductions 13 років тому

    how can you explain something so well in 12 minutes what my teacher couldnt explain in 2 weeks.

  • @MohammedBabur
    @MohammedBabur 13 років тому

    i always thought fluorine would have a low ionization energy but now that you explained that it's really only cationization, i get it now

  • @Kmaxgaming7
    @Kmaxgaming7 5 років тому +2

    You are really goooooodddd at explaining

  • @h4tchetman
    @h4tchetman 13 років тому

    you make it all make sence thankyou so much for uploading your videos

  • @davedawson8044
    @davedawson8044 12 років тому +1

    'I've achieved happiness in life. Don't mess with my electrons!'
    I love it =)

  • @DeborahJB
    @DeborahJB 9 років тому

    Thank you so much. You explained this so that it makes sense, as opposed to just memorization.

  • @XxjaychouxX
    @XxjaychouxX 13 років тому +1

    DAM! i dont even need to go to chemistry class anymore. all i need is just u!

  • @iwantsomeH2O
    @iwantsomeH2O 14 років тому

    Maaan. Your vids ARE THE BEST! thanx for explanining things your own way so we can understand it :D

  • @superKiwibaby
    @superKiwibaby 14 років тому

    really helpful, i only wish many teachers were as effective at explaining as you :)
    Thanks for saving my butt.

  • @anastasia7343
    @anastasia7343 2 роки тому

    Great way to remember this. Thanks!

  • @tropicallymixed.
    @tropicallymixed. 3 роки тому

    Wow, THANK YOU FOR EXPLAINING THIS.

  • @sansan36
    @sansan36 13 років тому

    @hockeymo
    Mg 1s2 2s2 2p6 3s2 1st I.E. = 736 kJ mol-1
    Al 1s2 2s2 2p6 3s2 3px1 1st I.E. = 577 kJ mol-1
    The 3p electron in aluminium is slightly more distant from the nucleus than the 3s, and partially screened by the 3s2 electrons as well as the inner electrons. Both of these factors offset the effect of the extra proton. basically while more electrons and more protons mean an increase in the attractive forces thus harder to REMOVE the electron across the period,

  • @whatchuneed1418
    @whatchuneed1418 12 років тому

    wow this helps in my science class he gives us a worksheet and never tells what any of this means!

  • @karenalexandra3262
    @karenalexandra3262 9 років тому

    GOD BLESS YOU SIR THANK YOU I CANNOT EXPRESS HOW HAPPY I AM RIGHT NOW THAT I UNDERSTAND IT THANK YOU THANK YOU THANK YOU

  • @argstupidcomputer
    @argstupidcomputer 13 років тому

    @fosheimdet Because the first shell can only support two electrons, therefore with two electrons, it becomes stable. But from the second shell and on, the outer shell can support up to 8 electrons, and with 8 electrons, that atom becomes stable.

  • @Mattsaeus
    @Mattsaeus 9 років тому +16

    Cation = Positive charge because Cats(ions) are always positive! :D

  • @ashoktewari837
    @ashoktewari837 9 років тому

    Clear concept Very good video

  • @hypertune483
    @hypertune483 14 років тому

    This helped me so much! I understood this video better then my teacher =) Thank you

  • @louisvuitton95
    @louisvuitton95 12 років тому

    Do you have another video where you talk more about the factors affecting ionisation energy in more detail? I know u did mention atomic radii but ive noticed past paper questions ask about the factors affecting the ionisation energy going down a group and the overall trend etc. Thanks for the vid tho

  • @momsspaghetti1040
    @momsspaghetti1040 5 років тому

    2018 and this is still the only thing that’s gonna help me pass

  • @NBAballer248
    @NBAballer248 12 років тому

    You helped me more than my teacher could in a whole month

  • @stoneworthyone123456
    @stoneworthyone123456 11 років тому

    should have watched this before my test thanks brother very helpful

  • @ChicagoShnozzlers
    @ChicagoShnozzlers 14 років тому

    Thanks helped a lot on my chem test

  • @albboy96
    @albboy96 12 років тому

    Funny how everyone wants to replace their chem teacher with u and man i couldnt agree more .. She just makes us copy shit down and never explains shit.. Thanks man u r goin to save me on the unit test

  • @jonnygrossman
    @jonnygrossman 15 років тому

    another mnemonic device for cation/anion: catabolic "breaks the electron# down or leaving a positive charge; whereas, anabolic builds up the electron # giving a net negative charge.

  • @jellekastelein7316
    @jellekastelein7316 8 років тому

    I take it that the drops in ionization energies at elements like between Be-B, Mg-Al, Zn-Ga, Cd-In, Hg-Tl, etc can be explained by the fact that you're starting to fill a new p-shell, and so the electrons in the new shell are somewhat less tightly bound to the nucleus(?)... The same thing seems to happen between the d and f shells (Yb-Lu, No-Lr). But then why does that not happen after the transition between the s and d or f shells (Ca-Sc, Sr-Y, Ba-La)?
    Also, when filling the p-block, around N-O and P-S, it seems there is a slight drop in energy as you've filled about half that block... Does that have something to do with the electrons' spin? And if so, why is there not a similar drop for elements in higher periods (or for the halfway-filled d and f shells)?

  • @bluebutterfly2015
    @bluebutterfly2015 11 років тому

    If you have an element that is in a lower row, but is more to the right in the table...Which would have the larger ionization energy? For example, Se and Si...

  • @SSD417
    @SSD417 12 років тому

    Very good mnemonic right there!

  • @flyboimomo121
    @flyboimomo121 13 років тому

    I've always remembered ions because if you break down the word "anion"
    a - a
    n- negative
    ion- ion
    And cation would be the positive one

  • @danalmass
    @danalmass 6 років тому

    thank you so much Mr , everything now makes sense to me

  • @totopotomoy
    @totopotomoy 14 років тому

    Thanks for all your help, Sal...can you make a video on electron affinity?...thanks

  • @themuffler
    @themuffler 9 років тому

    Great video! but a quick question. If Nobel Gasses do not have electronegative trends, how can the ionization levels in radon be lower than hydrogen?

  • @hfarouq23
    @hfarouq23 12 років тому

    Brilliant ! Which video has stuff on bp/mp and atomic radii ?

  • @maxarudy
    @maxarudy 13 років тому

    thankyou so much i think i might actually pass , you've given me hope :)!!!

  • @MrSharan1997
    @MrSharan1997 13 років тому +4

    chemistry rule no.1: DONT MEMORIZE!

  • @nevmann
    @nevmann 14 років тому

    is it the electrons which decide the properties of the atom?
    Since you said that if Fluorine looses an electron it will become more like Oxygen?
    Anyways great series so far :D

  • @scguava
    @scguava 11 років тому

    Why is it low to high for the transition metals? Don't they all only have two valence electrons? In addition, if copper has a higher reserve of electrons in its d-shell than nickel, won't it be more likely to give electrons away, making its ionization energy less than that of nickel?

  • @Maria-tx7bq
    @Maria-tx7bq 10 років тому

    @NevadaEdW the more positive the ion is the less ionization energy it has and the more negative the ion is the more ionization energy it has.. so the order is:
    Se2- , Br- , Rb+ , Sr2+

  • @d_155
    @d_155 7 років тому

    sir you are an awesome teacher

  • @GunzGonda
    @GunzGonda 14 років тому

    Thanks for the explanation!

  • @labox7265
    @labox7265 8 років тому

    This video really helped me. Thanks a lot.

  • @missrosito
    @missrosito 13 років тому

    THANK YOU VERY MUCH :)
    very well explained.. it reminds me of my Chemistry teacher's style - fun and visual :D

  • @mishmuhem
    @mishmuhem 13 років тому

    khan academy is the BEST

  • @TheT0Ds
    @TheT0Ds 11 років тому

    The reason why you people learn better here is not due to your teachers inability to teach but your ability to learn in what circumstances so please dont insult your teachers, who probably tries their hardest to teach ,but you may not try your hardest to learn.

  • @springwisteria9942
    @springwisteria9942 4 роки тому

    So could you also say that the ionization energy is the amount of resistance an atom has to remove its electrons?

  • @IVengence0
    @IVengence0 12 років тому

    Thanks for the lesson

  • @jenildecambra2535
    @jenildecambra2535 9 років тому

    Hi thanks for doing such a program it's a great help to me

  • @davedawson8044
    @davedawson8044 12 років тому

    Whatever works. Or the 't' can be written like a cross in some handwriting, which is like a +

  • @ramiboy99
    @ramiboy99 13 років тому

    LMFAO I IMAGINED SOMEONE TRYING TO IONIZE NEON AND THEN IT GOT ALL EMOTIONAL AND WAS LIKE "IV'E ACHIEVED HAPPINESS IN LIFE, DONT MESS WITH MY ELECTRON" LOOOOOOL

  • @TheBuka94
    @TheBuka94 11 років тому

    I know I'm really late, but I remember anions are negative because the "an" in anion says "a negative" and the rest is ion so, an anion is a negative ion.

  • @0zfer
    @0zfer 12 років тому

    I don't mean to be criticle but if this was in hd and the writing was clearer I think it would help me and others learn better, when I look back at what was already wrote I don't always know what is says because its kinda pixely and choppy

  • @hellotelephone1
    @hellotelephone1 14 років тому

    Thanks you!!!!! I have a Chem test tomorrow and this just saved my grade!! I UNDERSTAND NOW!!! :)

  • @bharatmanandhar1492
    @bharatmanandhar1492 2 роки тому

    Does Rubidium have high ionisation energy than Lithium? Please help me

  • @SasmitaKitchenGharGharana
    @SasmitaKitchenGharGharana 6 років тому

    Do we need to remember the whole periodic table for class 11& 12

  • @solano333
    @solano333 14 років тому

    Thanks man ! 3:31am :D Finally understood this crap !

  • @dasuniwijesuriya5516
    @dasuniwijesuriya5516 7 років тому +2

    thank you

  • @nishantdaima34
    @nishantdaima34 10 років тому

    Thank U a lot....
    My concepts r now clear....

  • @huntrbrns
    @huntrbrns 11 років тому

    this helped me remember how it goes thanks!

  • @SirLuis_
    @SirLuis_ 11 років тому

    your the best you deserve an award for this program, you helped me a lot