Periodic Table Trends: Ionization Energy

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  • čas přidán 25. 08. 2009
  • What an ion is. Using the periodic table to understand how difficult it is to ionize an atom.
    More free lessons at: www.khanacademy.org/video?v=yw...

Komentáře • 364

  • @princesslava15
    @princesslava15 Před 6 lety +49

    "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 Před 10 lety +88

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

  • @etiennelordeau8512
    @etiennelordeau8512 Před 10 lety +128

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

  • @JamesSagerSC
    @JamesSagerSC Před 10 lety +175

    Weren't you just teaching me calculus?

  • @RobertAnderson1
    @RobertAnderson1 Před 9 lety +91

    Does this guy teach everything?

  • @kittykatgurll
    @kittykatgurll Před 8 lety +250

    cations are pawwwwwsitive

  • @Resanub
    @Resanub Před 13 lety +8

    " 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. :)

  • @asma4247
    @asma4247 Před 10 lety +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.

  • @vivien4670
    @vivien4670 Před 9 lety +2

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

  • @sweetenergy
    @sweetenergy Před 13 lety +1

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

  • @itskiaxo
    @itskiaxo Před 11 lety +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.

  • @FamilySmith
    @FamilySmith Před 14 lety +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!

  • @elisekana2170
    @elisekana2170 Před rokem +1

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

  • @dragonfly3411
    @dragonfly3411 Před 3 lety +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 Před 9 lety +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.

  • @HellDevil75
    @HellDevil75 Před 12 lety +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!

  • @triggeredkook3957
    @triggeredkook3957 Před 7 lety

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

  • @cesiameza961
    @cesiameza961 Před 7 lety

    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!!!

  • @hedonism13
    @hedonism13 Před 13 lety +10

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

  • @keirafilms
    @keirafilms Před 3 lety

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

  • @habeebati1
    @habeebati1 Před 14 lety +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.

  • @MrFarkasOfficial
    @MrFarkasOfficial Před 13 lety

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

  • @aneesaislam3865
    @aneesaislam3865 Před 9 lety +24

    Thank you
    You made gibberish sound human

  • @88yodnom
    @88yodnom Před 11 lety +1

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

  • @rhea.saupin
    @rhea.saupin Před 12 lety +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! :) :)

  • @timreespt77
    @timreespt77 Před 11 lety +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 Před 6 měsíci

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

    • @Sam-fq1ho
      @Sam-fq1ho Před měsícem

      @@dddaaa6965 L

  • @xlwaiyiplx
    @xlwaiyiplx Před 15 lety +1

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

  • @xxjanie182
    @xxjanie182 Před 12 lety

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

  • @sidneyducleroir1364
    @sidneyducleroir1364 Před 8 lety +45

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

  • @DeborahJB
    @DeborahJB Před 9 lety

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

  • @superKiwibaby
    @superKiwibaby Před 13 lety

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

  • @h4tchetman
    @h4tchetman Před 13 lety

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

  • @Kmaxgaming7
    @Kmaxgaming7 Před 5 lety +2

    You are really goooooodddd at explaining

  • @HyperStrudel
    @HyperStrudel Před 13 lety

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

  • @labox7265
    @labox7265 Před 8 lety

    This video really helped me. Thanks a lot.

  • @hypertune483
    @hypertune483 Před 13 lety

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

  • @totopotomoy
    @totopotomoy Před 14 lety

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

  • @iwantsomeH2O
    @iwantsomeH2O Před 14 lety

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

  • @danalmass
    @danalmass Před 5 lety

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

  • @MohammedBabur
    @MohammedBabur Před 13 lety

    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

  • @amalismail999
    @amalismail999 Před 11 lety

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

  • @curtpiazza1688
    @curtpiazza1688 Před rokem

    Thanx for bringing the Periodic Table to life! 🎉😊

  • @yadpreetcheema4806
    @yadpreetcheema4806 Před 6 lety +1

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

  • @missrosito
    @missrosito Před 12 lety

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

  • @jenildecambra2535
    @jenildecambra2535 Před 9 lety

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

  • @jellekastelein7316
    @jellekastelein7316 Před 8 lety

    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)?

  • @stoneworthyone123456
    @stoneworthyone123456 Před 10 lety

    should have watched this before my test thanks brother very helpful

  • @Jcknight7996
    @Jcknight7996 Před 5 lety

    Does the energy change depending on the state of matter ie solid or gaseous

  • @ashoktewari837
    @ashoktewari837 Před 8 lety

    Clear concept Very good video

  • @saltykate9116
    @saltykate9116 Před 7 lety +1

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

  • @N0cturnalPr0ductions
    @N0cturnalPr0ductions Před 13 lety

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

  • @hfarouq23
    @hfarouq23 Před 11 lety

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

  • @xpinkbabyy
    @xpinkbabyy Před 13 lety +2

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

  • @nishantdaima34
    @nishantdaima34 Před 10 lety

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

  • @anastasia7343
    @anastasia7343 Před 2 lety

    Great way to remember this. Thanks!

  • @springwisteria9942
    @springwisteria9942 Před 4 lety

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

  • @huntrbrns
    @huntrbrns Před 10 lety

    this helped me remember how it goes thanks!

  • @kristiehansen1270
    @kristiehansen1270 Před 10 lety

    is this process or the principle of the aurorae borealis?

  • @manumbhat2154
    @manumbhat2154 Před 10 lety

    Is ionization energy of carbon more or less as it has 4electrons in its valence which is mid way

  • @adamaahmed7608
    @adamaahmed7608 Před 6 lety

    Thank you !! This video helped so much

  • @maxarudy
    @maxarudy Před 13 lety

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

  • @SasmitaKitchenGharGharana

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

  • @karenalexandra3262
    @karenalexandra3262 Před 9 lety

    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

  • @NBAballer248
    @NBAballer248 Před 12 lety

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

  • @UlTrA2GaMeR
    @UlTrA2GaMeR Před 13 lety

    Best teacher on the internet.

  • @themuffler
    @themuffler Před 9 lety

    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?

  • @sansan36
    @sansan36 Před 13 lety +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

  • @emmakorsah8995
    @emmakorsah8995 Před 6 lety

    pls,why didn't u arranged the second equation like the first?

  • @louisvuitton95
    @louisvuitton95 Před 12 lety

    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

  • @joeybenn
    @joeybenn Před 14 lety

    Amazing as always! Thank you

  • @d_155
    @d_155 Před 7 lety

    sir you are an awesome teacher

  • @tropicallymixed.
    @tropicallymixed. Před 3 lety

    Wow, THANK YOU FOR EXPLAINING THIS.

  • @XxjaychouxX
    @XxjaychouxX Před 13 lety +1

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

  • @paulceltics
    @paulceltics Před 13 lety

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

  • @GunzGonda
    @GunzGonda Před 14 lety

    Thanks for the explanation!

  • @davedawson8044
    @davedawson8044 Před 12 lety +1

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

  • @kmcnolo
    @kmcnolo Před 14 lety

    Thank you soooo much! this was a huge help.

  • @momsspaghetti1040
    @momsspaghetti1040 Před 5 lety

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

  • @dasuniwijesuriya5516
    @dasuniwijesuriya5516 Před 7 lety +2

    thank you

  • @__fineapple__3762
    @__fineapple__3762 Před 7 lety

    Thank u so much. This helped a lot.

  • @SSD417
    @SSD417 Před 12 lety

    Very good mnemonic right there!

  • @IVengence0
    @IVengence0 Před 12 lety

    Thanks for the lesson

  • @ahmedal-mudhi3198
    @ahmedal-mudhi3198 Před 9 lety +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 Před 9 lety +4

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

    • @ahmedal-mudhi3198
      @ahmedal-mudhi3198 Před 9 lety

      ***** 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 Před 9 lety

      ***** 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 Před 9 lety

      ***** 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 Před 9 lety

      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

  • @bluebutterfly2015
    @bluebutterfly2015 Před 11 lety

    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...

  • @Maria-tx7bq
    @Maria-tx7bq Před 10 lety

    @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+

  • @e0n662
    @e0n662 Před 4 lety +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.

  • @hads4907
    @hads4907 Před 8 lety

    Thank you!! very helpful!

  • @bharatmanandhar1492
    @bharatmanandhar1492 Před 2 lety

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

  • @hedonism13
    @hedonism13 Před 14 lety

    I feel guilty - I completely skipped electron config 2 and valence electrons because the shells and stuff were completely getting away from me. Is it absolutely necessary to understand SPDF shells?

  • @sansan36
    @sansan36 Před 13 lety

    @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,

  • @ChicagoShnozzlers
    @ChicagoShnozzlers Před 13 lety

    Thanks helped a lot on my chem test

  • @Mattsaeus
    @Mattsaeus Před 9 lety +16

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

  • @scguava
    @scguava Před 11 lety

    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?

  • @BilboTBaggins
    @BilboTBaggins Před 10 lety +1

    are u writing with a mouse or a stylus?

  • @argstupidcomputer
    @argstupidcomputer Před 13 lety

    @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.

  • @cheerbre8
    @cheerbre8 Před 10 lety

    Great video!!!

  • @evanearltrinity
    @evanearltrinity Před 10 lety

    Which has higher ionization enery between calcium and aluminum? Im confused. . .

    • @Amir-gb6es
      @Amir-gb6es Před 10 lety

      Calcium has a much lower Ionization energy level because it's only located in the 2ND group, which means that they have 2 electrons in there outer shell that they want to give away so they can reach a stable state. Also, the trends in the p.table show that the elements with the highest ionization energy are located in the TOP LEFT, and the lowest are located in the BOTTOM RIGHT, again this is because of the amount of electrons in their outer shell and their "willingness" to give away electrons even when it means that they will take a step back in the journey to a stable atom with 8 electrons in each shell

  • @techn0pvd
    @techn0pvd Před 12 lety

    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.

  • @anh1798
    @anh1798 Před 12 lety

    really helpful, thanks!

  • @nevmann
    @nevmann Před 14 lety

    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