Trick for Slater's Rule, calculation of screening constant and effective nuclear charge.

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  • Опубліковано 16 вер 2024
  • In this video I explained the trick for Slater's Rule, calculations of screening constant and effective nuclear charge.
    Correction :for Titanium
    Ti (z=22) Electronic configuration is 1s2 2s2 2p6 3s2 3p6 3d2 4s2. If we want to calculate the screening constant for one d electron in 3d..(There will be no effect of 4s electrons in screening) Trick is : for electrons in nth shell (screening constant is 0.35) and for electrons in n-1, n-2,n-3 etc (screening constant is 1). Number of electrons in nth shell (3d +3p+3s)=10. Do minus 1. Because we are calculating sigma for that. So 9×0.35 =3.15 and number of electrons in n-1 and n-2 shells (2p+2s+1s)=10. So 10×1=10. Total screening constant is 3.15 +10 = 13.15. Effective nuclear charge = atomic number - screening constant
    = 22-13.15 = 8.85.
    Thank you all for your support.

КОМЕНТАРІ • 801

  • @Lets_crack_it0806
    @Lets_crack_it0806 11 місяців тому +30

    came after watching amitabh sir lecture and got confused.. u cleared my confusion.. thanks..

  • @walugyosimonpeter9755
    @walugyosimonpeter9755 4 роки тому +212

    Thank you mam, I do petroleum engineering and u have helped me so much, I also recommend anyone who needs explanation here in university when they come to me,am frm Uganda

    • @haker57_
      @haker57_ 2 роки тому +69

      Others-studying this in colleauges
      Indians- class 11 😅

    • @haker57_
      @haker57_ 2 роки тому +7

      @@PoojaSharma-rb1ve are u preparing for jee

    • @haker57_
      @haker57_ 2 роки тому +1

      Insta id?

    • @thepm517
      @thepm517 2 роки тому +5

      @@haker57_ I'd:beware of girls

    • @kashish4337
      @kashish4337 Рік тому +19

      Uganda!!!😳😳
      Here we 16 yrs old ppl studying this 💀

  • @srinivasgali5968
    @srinivasgali5968 5 років тому +11

    mam one great avantage given by you is there are many (i dont know their efficiency) because they teach in hindi which many of south indians dont know and also your explanation is good thank mam

  • @ajgamerdelight1024
    @ajgamerdelight1024 Рік тому +7

    👍👍👍👍nice explanation mam
    But using calculator for adding 18+.35

    • @sahilyadav8058
      @sahilyadav8058 Рік тому +2

      😂😂 maths is too much weak 😂

    • @jaswanth8808
      @jaswanth8808 24 дні тому +1

      Mam is for chemistry not for maths🎉😅

    • @M.Krrish701
      @M.Krrish701 День тому

      I was also thinking 😂 weak maths

  • @zionfaye121
    @zionfaye121 7 років тому +12

    God bless you, ma'am for making this so easy for me to understand. The textbook is as well complicated. Stay blessed and God bless you again.

  • @Harish_barman
    @Harish_barman 6 років тому +96

    When I saw my notes I didn't get anything but this video helps me a lot because I have exam tomorrow ..thank you man 🙏

    • @KomaliMam
      @KomaliMam  6 років тому +21

      Harish barman Thank you and if possible share this video with your friends.

    • @kunalgarud
      @kunalgarud 2 роки тому +3

      Us bhai😭

    • @shanthavardhan7258
      @shanthavardhan7258 Рік тому +3

      l 💕 u mam

    • @i.ashishhhv.x
      @i.ashishhhv.x Місяць тому

      Bro years gone 😂, how did your exam go? Do you even remember this day now?

  • @pradeeshadithya3641
    @pradeeshadithya3641 2 роки тому +11

    it helped me a lot for JEE preparation.Thank you for explaining clearly mam.

  • @GomuGomu17
    @GomuGomu17 Рік тому +5

    Amazing explanation mam , new buddies do watch the video she really taught very good 👍🙏🙏

  • @shampamajumder6613
    @shampamajumder6613 2 місяці тому

    Thank you so much ma'am, I was struggling in this topic since a very long time. You cleared all my doubts.

  • @navartindia2.046
    @navartindia2.046 3 роки тому +10

    Madam I had a doubt i.e why you took 1 d electron in Titanium. @ 8:34. please clarify it immediately mam.

  • @VinodYadavu-v7i
    @VinodYadavu-v7i Місяць тому +1

    Mam. for d orbital we should take electron(n-1) so than 1×0.35 + 18×1=18.45 ....❤

  • @satyawangedam428
    @satyawangedam428 3 роки тому +8

    Loved your teaching ! 🤩🤩🤩

  • @avinash2462
    @avinash2462 4 роки тому +22

    Nice explanation mam my university exam had it for 4 mark and I could write because of you ☺️☺️

  • @alsals8747
    @alsals8747 6 років тому +3

    you calculate zeff for Ti in d orbital so n th position (9*0.35)+(10*1)=13.15 then zeff =22-13.5=8.85

  • @AnitkumarAkm
    @AnitkumarAkm 23 дні тому

    Thank you so much mam.. I have cleared all my doubt related to slater rule and calculation of z-effective.

  • @ayonijapandey7571
    @ayonijapandey7571 5 років тому +4

    Mam your video is very beneficial..thankyou so much🙏

  • @swamyk8589
    @swamyk8589 4 роки тому +16

    Mam can u plz explain y 3d2 contributes only 1 electron

    • @aaliya9652
      @aaliya9652 3 роки тому +3

      same question

    • @mohdamir7704
      @mohdamir7704 3 роки тому +4

      We have to reduce 1 from the outermost electron.... e.g- for 4s2 we take 1 electron
      For 2p6 we take 6-1=5 i.e 5 electron

    • @harshitaupadhyay160
      @harshitaupadhyay160 3 роки тому +4

      @@mohdamir7704 why bro

    • @mohdamir7704
      @mohdamir7704 3 роки тому +2

      @@harshitaupadhyay160 that is the part of rule..!!

    • @singamanenisrinivasarao6516
      @singamanenisrinivasarao6516 2 роки тому

      @@harshitaupadhyay160 If n e are there only last 1 e is screened by remain (n-1)e,1e excluded.

  • @niraj_rana_5054
    @niraj_rana_5054 9 місяців тому +1

    0.30 from the other electron in 1S orbital if the electron for which S is calculated.
    Ma'am you forgot this point to include in this video

  • @divyadharshini.s.a4593
    @divyadharshini.s.a4593 4 роки тому +6

    Hi mam!!! I'm watching every vedios nd jst ur amazing with ur knowledge.. Thank you so much for ur efforts... 😊..., Mam i have a request, I can't understand this slaters rule tat hw ur neglecting some terms nd there is some confusion. Can u pls clarify with some more info mam?? 🙃

  • @shubhankarsingh4191
    @shubhankarsingh4191 Рік тому +4

    Nice explanation... I am hardly struggle in this type of questions.. thank you MAM😊😊😊😊😊😊😊🎈

  • @jignyasha9633
    @jignyasha9633 2 роки тому +2

    Mam but Ti me aap ne Sare ko 18 kyu kr diya 1(0.35) + 8(0.85) + 8 (1) + 2 (1) aata hai na mam because vo (n-1), (n-2) aese aata hai na mam (toh fir ye answer galat hoga na mam)

  • @pranjalpravesh9857
    @pranjalpravesh9857 5 років тому +19

    You're awesome ma'am and your writing is awesome... But why do you use calculator for such small calculations.. 😅🤔

  • @SoumyajitMondal
    @SoumyajitMondal 3 роки тому +5

    The description is quite contrasting with the table.
    For s and p , (n-1) -> 0.85 and (n-2) -> 1.00 but it's written 1.00 for both n-1 and n-2

  • @mr.teenager7555
    @mr.teenager7555 8 місяців тому +1

    I dont know how to thank u mam ... love from tamil nadu kanyakumari ❤

  • @edu-richpersonality9865
    @edu-richpersonality9865 6 років тому +4

    How simply you explained it!!!!! Terrific and very loving voice with respect to students you have mam 😃 Thanks Thank you so much!!!!!😇🤓😻👼

    • @KomaliMam
      @KomaliMam  6 років тому +1

      Edu-rich personality ..God bless you..study well..

    • @edu-richpersonality9865
      @edu-richpersonality9865 6 років тому

      Komali M mam I am the aspirant for coming NEET. I have complications in my mind about solving the MCQ's of stereo & optical isomerism please if you have any trick to solve them , please provide such supporting videos soon thanks mam 😃 Thanks Your wishes are like God gift for me ...........🙃😃😇👼

    • @edu-richpersonality9865
      @edu-richpersonality9865 6 років тому

      I forgot to mention that isomerism in co-ordination compounds , not the instead others.....👼

  • @user-in7nv4ts8x
    @user-in7nv4ts8x 8 місяців тому

    Thank you mam I am.doingmedical doctor your video help me so much I will recommend this to all

  • @preranachaturvedi3544
    @preranachaturvedi3544 6 років тому +5

    Thank you so much mam. It helps a lot. Your video make me understand the EAN. I am so happy.😊

  • @mithunk110
    @mithunk110 4 роки тому

    Awesome trick mam...
    Ur all videos has unique style with awesome trick...
    Thankyousomuch...
    Alwz Keep us helping from ur fantastic way of teaching

  • @pathu1103
    @pathu1103 2 роки тому +5

    Thank you very much ,mam
    Now my doubt about 4s orbital electrons is cleared🤗😇😊

  • @balajivaddi9779
    @balajivaddi9779 5 років тому +7

    Madam Slater rule I have doubt about lithium 1s2 you had taken n-1 but boron you had taken n for 1s2 why ? Please clarify

    • @simrankumari6288
      @simrankumari6288 3 роки тому

      Yes l have also problem that think ........

    • @Anxietyless
      @Anxietyless 3 роки тому

      Yes mujhe bhi ye dought h

    • @ankushsinghsaini181
      @ankushsinghsaini181 2 роки тому

      @@Anxietyless easy h

    • @bhratjeet4189
      @bhratjeet4189 Місяць тому

      ​@@ankushsinghsaini181😅

    • @alinasiddiqui7194
      @alinasiddiqui7194 Місяць тому

      I think it depends on question in lithium we find for 2s1 e- so we take (n-1) and in boron we find for 2p1 so we leave it and take whole 2s1 and put values

  • @RamaDevi-vo9wt
    @RamaDevi-vo9wt 3 роки тому +4

    Thank you mam you cleared my doubts every time I watch ur videos if I get doubt

  • @anuvedsolanki9192
    @anuvedsolanki9192 3 роки тому +1

    Thank you mam your video is so useful for me
    Keep going we will support you

  • @kak90
    @kak90 6 років тому +5

    You are an amazing teacher....

  • @kajalyadav2716
    @kajalyadav2716 2 роки тому +2

    Very helpful for b.tech cse also✌️✌️

  • @prantik9632
    @prantik9632 3 роки тому +2

    But how could we just add up all the remaining electrons and just multiply them with 1? I didn't get it

  • @adityaagrahari6887
    @adityaagrahari6887 7 років тому +3

    best way to teaching ..nice tricks and at last tanku so much mam for this video

  • @kaverishivaleela6590
    @kaverishivaleela6590 4 роки тому +43

    Honestly I had some confusion....🥺

    • @junnu_bbe
      @junnu_bbe 2 роки тому +1

      we r not different sis😪⚡

    • @ohm10166
      @ohm10166 2 роки тому

      Same...... which electron to take and which not to.... caused confusion

  • @renudixit3083
    @renudixit3083 6 років тому +6

    Thanku maam for clearing my doubts regarding this rule

  • @haricharanreddy.s4809
    @haricharanreddy.s4809 3 роки тому +3

    Mam,how to find effective nuclear charge by a 3d electron in bromine atom ?

  • @shanmugam9454
    @shanmugam9454 6 років тому +1

    Ur explanation is so beautiful....Thank u .....komali gaaru

  • @diptinaval9277
    @diptinaval9277 6 років тому +2

    I was so nervous but you made it easy.

  • @ASHOKKUMAR-ry6cg
    @ASHOKKUMAR-ry6cg 3 роки тому +2

    Ma'am really thanks a lot..

  • @srinivasaraojakka4672
    @srinivasaraojakka4672 5 років тому +9

    Nice teaching
    Mam your handwriting is so good even if you write with your left hand

  • @naushabaparween4983
    @naushabaparween4983 2 роки тому +1

    Thnku so much ma'am...it's really helpful 👍

  • @swechareddy2798
    @swechareddy2798 4 роки тому +8

    In Ti n=3 for d u took 0.35 but y for 3p and 3s u took 1

  • @akshaya2406
    @akshaya2406 3 роки тому +1

    It's very useful. Thanks Alot Mam 🙏🏼☺️

  • @namrubest8225
    @namrubest8225 2 роки тому +1

    Maam, y does the last orbital not contribute?I didn't understand can u plz explain

  • @nalexverghese
    @nalexverghese 6 років тому +9

    I have a doubt regarding Titanium's case. Basically since we're considering the d electron, so n =3. But when we reach the 3s3p part, how did you take the contribution as 1, and not 0.35 or 0.85?

  • @mohammadnizam2284
    @mohammadnizam2284 2 роки тому

    I have no any confusion mam all are clear... Thanks

  • @vjs6393
    @vjs6393 11 місяців тому +1

    Mam literally when my sir explained this topic I was thinking where did that value has gone why im getting the different answer im just blank when explained this topic im all clear
    THANK YOU SO MUCH MA'AM 😊

  • @KiranSingh-lw1nm
    @KiranSingh-lw1nm 3 роки тому +2

    Loved it mam lots of ❤️ you are great ❤️

  • @ShahidImamsahib
    @ShahidImamsahib 3 роки тому

    Thai video Helps me a lot

  • @mahdiYussuf-z1c
    @mahdiYussuf-z1c Рік тому

    Thank you very much mam. Our system confused me but you made it clear for me

  • @rnpal5719
    @rnpal5719 4 роки тому

    So helpful ...ur voice nd writing both r so clear nd beautiful

  • @dadisettiraju5087
    @dadisettiraju5087 2 роки тому

    Your handwriting and explanation is so good mam

  • @aneesahmad7140
    @aneesahmad7140 4 роки тому +1

    Very very bst explanation

  • @abhinavnain4684
    @abhinavnain4684 2 місяці тому +1

    But 2s1 contributes 0.35 why u said it has no contribution

  • @macharajashekhar9498
    @macharajashekhar9498 4 роки тому

    The teaching is crystal clear
    Even a no brainy guy can understand this in a jiffy

  • @riturajput2807
    @riturajput2807 4 роки тому +1

    Thanx mam

  • @souradipchakraborty1473
    @souradipchakraborty1473 2 роки тому

    why did you say you did woring in the decription
    according to J.D.Lee book for chemistry jee which i have what you did in the video was absolutely correct

  • @vaishalibhure9340
    @vaishalibhure9340 3 роки тому +1

    Thankyou mam it helps mi a lot💯😊😊😊😊😊😊😊😊🥰😍🤩😊😘😚😙

  • @jaichandyadav2263
    @jaichandyadav2263 5 років тому +6

    what is the trick here
    you did the original method

  • @nameka6127
    @nameka6127 7 місяців тому +1

    Mam in case of Ti you have multiplied
    3s² and 3p⁶ with 1 but they have same n (i e 3) as of 3d²....plss explain

    • @saniarahman2016
      @saniarahman2016 7 місяців тому

      Because the values for s,p orbitals are different and d orbitals are different

  • @Aaaaashnaaa
    @Aaaaashnaaa Місяць тому

    Thanku mam best explaination simpe h and easy 😊😊

  • @ultimateanswers2830
    @ultimateanswers2830 Рік тому

    Thank you mam so nicely explained

  • @neversaynever997997
    @neversaynever997997 5 років тому +11

    Excuse me mam, I have a question? In the Titanium one, is the 3d orbital together with 3s and 3p because in my book it says they are not together so if it was like that then the electron of 3d that remains is n, then 3s3p is n-1, which is a 0.85 and then the others are 1. I'm not sure, I have seen the correction below but it still confuses me because my book divides d and f orbitals from the p and s orbitals even if they have the same general quantic number (in the Ti case is 3) Could you please help? Thank you!

  • @ankitgoyal5068
    @ankitgoyal5068 6 років тому

    First video Jo complete dekhi Maine...awesome and thanks mam...but one question please 😕

  • @skshrivastava3937
    @skshrivastava3937 Рік тому +1

    Thanks bro
    Got it

  • @azimanseikh7728
    @azimanseikh7728 6 років тому +2

    Sooooooooooooooooooo thank you mam .With this trick I got excellent marks

  • @ramyamohan9586
    @ramyamohan9586 4 роки тому

    Mam really awesome 💯 im really confused about it but now im clear. Tysm

  • @bkjivatman7418
    @bkjivatman7418 2 роки тому +1

    Thank u a lot mam

  • @ramisettynareshkumar1065
    @ramisettynareshkumar1065 4 роки тому +3

    Thank you so much mam ....I had a great confusion on this topic now I got clarity on it

  • @lokesh7348
    @lokesh7348 3 роки тому

    Fabolous explanation thanks for the concept

  • @minubiswas5849
    @minubiswas5849 2 роки тому +6

    Thank you mam for clearing my doubts ❤️❤️

  • @jagannathsahoo6018
    @jagannathsahoo6018 2 роки тому +4

    Thanks a bunch mam ❣️🙏🙏🙏🙏
    For your effort 🙏

  • @chemistrywithSAHNIDUBEY3453

    mam i am from bihar your explanation is good ,,,,hope it will help in my JEE exam

  • @satyasohag4835
    @satyasohag4835 5 років тому +2

    Mam, thank's it's a very easy one, but I have not understand in class room. But by watching your video I am able to do this type of questions......

  • @ishadadhich-ix7062
    @ishadadhich-ix7062 4 місяці тому

    Ok...i see , so my teacher taught me this in class😅
    Thank you so much mam😊

  • @chitraelangovan1614
    @chitraelangovan1614 4 роки тому

    Your teaching is very nice

  • @VV11999
    @VV11999 4 роки тому

    mam check it ....the ans 3.65is correct ...not 8.85 mam......we not consider shell.. we want to consider the grp(s ele and P ele,) only like that (1s2)=n-3,(2s2 2p6)=n-2,(3s2 3p6)n=1,(3d2)n=1

    • @KomaliMam
      @KomaliMam  4 роки тому +1

      Got answer 3.65 only.

  • @aks007sk
    @aks007sk 4 роки тому +1

    nice explanation Mam ,Thanks a lot.

  • @priyadubey2111
    @priyadubey2111 5 років тому +2

    Awesome video. Very nice explanation with examples. Must watch to clear any doubt in your mind.

  • @user-pt-au-hg
    @user-pt-au-hg 4 роки тому +1

    ? for s,p (n-1)the value is 0.85 not 1.00, and for n-2, the value is 1.00, is it not? Not 1.00 for both n-1 and n-2? :)

    • @strange5315
      @strange5315 3 роки тому

      I too have doubt in that #plsclarifydoubt

  • @rathinama8656
    @rathinama8656 4 роки тому +2

    Thank you mam...it helps for me to study neet....I shared this videos with my friends

  • @priyanshubhuria9766
    @priyanshubhuria9766 4 роки тому

    Mam your explanation is good.,from which state d you belong?I am from Himachal Pradesh.

  • @SiddharthSingh-gg7sb
    @SiddharthSingh-gg7sb Рік тому +1

    The explanation was so good. The electron table on top was very helpful.

  • @debabratapahari1263
    @debabratapahari1263 6 років тому +7

    And in your video, for Ti, when you find no. of electroms in nth shell, Why should you do minus one. Please explain it madam. I can't find the reason.

    • @rahulgoyal6004
      @rahulgoyal6004 4 роки тому

      Ya I also have have doubt

    • @ashapurnadas9221
      @ashapurnadas9221 4 роки тому +3

      You minus it because.. for one electron in d we are calculating, it has two electrons, one we take and remove coz for that electron we are calculating the nuclear-charge....the other d electron contributes to its nuclear charge...in small the electron u r calculating nu. Charge can't contribute to itself...

    • @swechareddy2798
      @swechareddy2798 4 роки тому

      Minus one coz u r actually calculating nuclear charge on that electron.....
      Electron itsels can not screen itself

    • @neetugaur7768
      @neetugaur7768 4 роки тому

      Because it is the test electron which is affected by the screening ...an electron never shields itself

  • @maryamsultana5278
    @maryamsultana5278 4 роки тому +7

    May God continue to bless you with lots of peace, love joy and happiness in your life!!♥️ My wish for you is for God to uplift you more and bless you with everything that you desire in your life the most. May God bless🥰...work hard... Stay lively as alwz.. ♥️...follow urr heart... Make everyone proud.... Loads of love nd everlasting joy nd happiness... 🥰

  • @komalshinde6304
    @komalshinde6304 2 роки тому +1

    Mam
    w
    Why u taken 1 electron in last example for d ?

  • @gyana_marg
    @gyana_marg 4 роки тому +2

    i had a dought at 8:34 i.e why mam took 3d orbital as only 1 electron

  • @kirtidesai3547
    @kirtidesai3547 2 роки тому

    Thanks you mam very much please give like this short video and tips and tricks 😃😄 plzz

  • @saranshsingh2355
    @saranshsingh2355 6 місяців тому

    Thanks a lot mam for this easy explanation ❤😊

  • @banothushekhar4661
    @banothushekhar4661 Рік тому

    Wonderfull great explanation mam

  • @manojbashist1220
    @manojbashist1220 5 років тому +1

    Komali mam your video is very helpful

  • @Aishwarya-dew
    @Aishwarya-dew 2 місяці тому

    Mam your teaching is good ❤but to be honest i didn't understand some concept

  • @anjanirawat107
    @anjanirawat107 4 роки тому +1

    Wow ma'am great explanation 👍

    • @gyana_marg
      @gyana_marg 4 роки тому

      i had a dought at 8:34 i.e why mam took 3d orbital as only 1 electron

    • @anjanirawat107
      @anjanirawat107 4 роки тому +1

      Bcoz always we have to take 1 electron less than the electrons present in the orbital....Hope u understood

    • @gyana_marg
      @gyana_marg 4 роки тому

      @@anjanirawat107 BUT MAM took all electrons in previous questions i.e 2*0.85+2*0.35 plz respond...

    • @junnu_bbe
      @junnu_bbe 2 роки тому

      @@gyana_marg for s or p orbitals, pairing does,so it's impossible to break,that y ,I think

  • @travelgeeks525
    @travelgeeks525 3 роки тому +2

    Thanku so much for explaining chemistry in a simple way☺️

  • @priyankapriyadarsini91
    @priyankapriyadarsini91 3 роки тому

    Mam the way you teach is awesome 😊😊

  • @Satyam_Pandey.
    @Satyam_Pandey. 8 місяців тому

    Helpful lec mam

  • @100SUBBURAJA
    @100SUBBURAJA Рік тому

    Mam Thank you for the explanation!
    Mam why we are taking 3s 3p 3d together in case of scandium