How to do if que is : What is the value of sigma for 11th electron of potassium? Is it like this:- K = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 11th electron is 3s¹ So, 1s² > 2(1) 2s² 2p⁶ > 8(0.85) 3s²3p⁶ > 7(0.35) =2+ 6.8 + 2.45 =11.25 = sigma Z eff = Z - sigma =19 - 11.25 =7.75 = answer?
Thank you mam we learn a lot of concept from your komali channel....but in reality is we all are komali's learning from your beautiful leacture short tricks notes with a easy manner...once again thanks a lot mam...😊😊..
Mam I had a doubt in this concept mam you wrote the configuration of iron when u are calculating for 4s,3d,3p in that configuration u wrote 3d6 it 3d10 but when u r calculating for 3s u wrote 3d10 I can't understand mam is there any reason for writing mam
I see at 15:45 she wrote 3d10.. i'm no exper but I think that's an error and she probably didn't intend that. Though it won't affect the calculation because in that particular case she is picking an electron from the (3s 3p) group and crossing out anything to the right anyway.
because for ions once d orbital is filled the orbital energy drops to below the corresponding S orbital, in standard notation we put 4S before 3D however in terms of energy 3d is always before 4S.
Ma'am in Slater rules, for (n-1) d electrons ...1.00 value for calculation of sigma should be taken..but during calculation..we take 0.85 for (n-1)d electrons ..why.??
Ya I had the same doubt (so the reason for 3d to come before 4s is {you should write configuration acc. to radius order) that is:- all the 3n e- are written before 4n e-.
you clarified all my confusions Thank You professor!!!!
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Li-1.3
Na-2.3
K-2.2
Mg-2.85
This is fantastic and really accurate.. Is there any book or books that you would recommend that cover these things too?
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How to do if que is :
What is the value of sigma for 11th electron of potassium?
Is it like this:-
K = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹
11th electron is 3s¹
So,
1s² > 2(1)
2s² 2p⁶ > 8(0.85)
3s²3p⁶ > 7(0.35)
=2+ 6.8 + 2.45
=11.25 = sigma
Z eff = Z - sigma
=19 - 11.25
=7.75 = answer?
Thank you mam we learn a lot of concept from your komali channel....but in reality is we all are komali's learning from your beautiful leacture short tricks notes with a easy manner...once again thanks a lot mam...😊😊..
thankyou mam for clearing my doubts❤you are a brilliant teacher
Best explanation
Madam well understood thank u good bless u am from afrika
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Keep doing videos like this mam really helpful thank you
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Tq mam it made my concept crystall clear 😊😊
Mam at 7:38 3d6 = 6x1 for (n-1) ??
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Mam can u tell your math calculation trick 14×0.85 = 11.90 7:43
Are the d orbitals and s and p in the same group
Mam, please i have one question, are you left-handed? Your handwriting is very beautiful and clear.
Why chemistry teachers are left handed 😅😅😅
Exception 😂
Who use their left hand for writing...they are multi-talented.😂...I heard that from my mom
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Even allen teacher didn't give us this trick
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Cleared ma'am
Of course can you help me to the topic of electron structure
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@@KomaliMam maam do ionic equilibrium full chapter
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upload soon 😊 Which topics you want from organic?
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Mam keep about physics pls
Mam first n=1 kese hua s orbital me to 2 election he i.e 4s²
Mam please do a video tricks in chemistry in every day life structures... If you have time...😊
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Mam can u say what method of multiplication you did pls mam
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Mam please do 140+ chemistry weightage chapter's
Where is the 14 coming from in the 14×0.85
Mam I had a doubt in this concept mam you wrote the configuration of iron when u are calculating for 4s,3d,3p in that configuration u wrote 3d6 it 3d10 but when u r calculating for 3s u wrote 3d10 I can't understand mam is there any reason for writing mam
I see at 15:45 she wrote 3d10.. i'm no exper but I think that's an error and she probably didn't intend that. Though it won't affect the calculation because in that particular case she is picking an electron from the (3s 3p) group and crossing out anything to the right anyway.
Thank you so much mam ❤️👍
Keep watching 👍
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Mam teach more videos for inorganic chemistry mam plse plse d and f block
Sure 😊..which topic you want ?
@@KomaliMam Tq mam d block mam
@@swathip199 In d block, which topics mostly you want ?
@@KomaliMam ionization enthalpies and trends in standard electrode potential mam Tq for ur reply mam 😊
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Tq mam
PLZ do provide notes of lectures too
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Mam can you please make a video on all oxidizing agents one shot like mam previous video on all reducing agents for organic
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pls mam can u tell me is it there in neet syllabus ?
Questions didn't come. But it's interesting topic..you will find it in your coaching materials.
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Mam plz do tip and tricks video for states of matter compressibility and liqueation of gases plz do mam 😞
why do you fill in 3d orbital before 4s orbital ?
because for ions once d orbital is filled the orbital energy drops to below the corresponding S orbital, in standard notation we put 4S before 3D however in terms of energy 3d is always before 4S.
Ma'am in Slater rules, for (n-1) d electrons ...1.00 value for calculation of sigma should be taken..but during calculation..we take 0.85 for (n-1)d electrons ..why.??
They are experimental values..
how 3d come over 4s 😢
Ya I had the same doubt (so the reason for 3d to come before 4s is {you should write configuration acc. to radius order) that is:- all the 3n e- are written before 4n e-.
@@youworld7089thanks
Write in radius order mean 1,2,3....
Mum❤
At 15:27 how 3d¹⁰
Same 😢 doubt
Galti hogaya hai maam se
@@mallik01 please 🥺 tell me right answer
@@shammilA-ri8cl 3d⁶
@@mallik01 TQ
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