Thank you. I'm truly glad that the content helped you and Pranavi achieve 100% on your exam in the USA. Wishing you both continued success in your studies.
Good morning sir, I have a question from NEST exam ---Q1 In H atom, the electron is bound by Coulomb interaction and its three quantum numbers n, I, m are related as n=1, 2, 3, 4,...; 1= 0, 1, 2,...n-1; m=-I,-(1-1), 0.., (I- 1),1. The spin quantum number s=1/2 and -1/2. Thus, the maximum number of electrons that can occupy the first four shells (n = 1, 2, 3, 4) are 2, 8, 18, 32, respectively. In artificial atoms (atomic clusters), where the electrons are bound by spherical harmonic oscillator potential, n=0,1, 2, 3, 4,.. with I=0, 2, 4, 6,..n, for even n, and I=1, 3, 5, 7,..n, for odd n. The possible values of m and s remain the same as in the case of H atom. The filled shell configuration for this system for filling up to n=1, 2, 3 and 4 will respectively correspond to the electron numbers Ans V 1. 8, 20, 40, 70 X 2. 6, 18, 38, 68 Ж з. 6, 12, 20, 30 X 4. 2, 8, 18, 32 Question Type : MCQ Question ID: 4941032050 Status: Answered Chosen Option: 3 Marks : -1.00
@@AdiChemAdi sir radial wave function . sir in radial wave function vs r ( distance from nucleus ) graph for s orbital it starts from non zero vale and in p d f orbitals it starts from zero ??? why so?
Yes. This is weird. But must have a meaning. Reason might be for 1s, there is a "mathematical" probability of finding the electron at nucleus, which is not possible. Or it indicates highest penetration power for the closest electron i.e. 1s.
@@AdiChemAdi penetration power? it is closeness of electron to the nucleus right? also can u tell me how peaks of radial probablity distribution curves related to penetration power of an orbital ??
I have just one question that the nodes that we get in radial probability function graph are of same orbital or other orbitals are also considered say In 1s no node but in 2s one node that node is after 1s ? am I right and 2nd question is whether the increase in height of graph in 2s orbital for first time is because of 1s bcz if the radial probability function graph are solely for particular orbital there should be one maxima only.if you are not able to understand what I am saying u can call me also I will give my number but please clear my confusion I am having headache
Good question. These were plotted for different orbitals in hydrogen atom as shown clearly in the video. Node is the one with zero psi value (trough). I understood your question. first graph is for 1s. second graph is for 2s. But the 2s graph does not include 1s. They are separately plotted.
Sir can you tell one thing that for a 2s probability density graph there are 2 humps. Now my question is whether the 1st hump represents the 1s and the 2nd hump represents the 2s ??
Hello sir, In this video question part according to your explanation no of radial node is equal to trough so 3s orbital present two radial node so two trough. Similarly no of peak is three based on above condition option 2 is correct but you can told 3 is correct please explain sir which is correct. Thank you.
Really sorry sir I understood 3s orbital. Now I realized question given 3p orbital so answer is correct thank you so much for replying once again thank you sir.
sir can you please clear my one more doubt . I am not able to understand that how in hydrogen two atomic orbitals give 2 molecular orbital as if two waves can either do constructive overlap or destructive overlap but in my book it is written that two waves do constructive and destructive .
When constructive addition occurs, the intensity of the wave increases in the space where they are overlapping (between the two nuclei, hence bonding MO, more attraction for the electrons, low PE, more stable). In case of destructive addition, the intensity is reduced, only in the region of overlapping (antibonding MO, because the electron density is reduced in between the two nuclei, less attraction, more PE, less stable )
Actually, when the +psi part of the wave combines with -psi part it reduces the psi value i.e. destructive. Otherwise constructive. These are the mathematical possibilities.
@@AdiChemAdi hmm I think in this class( 11 I am in this class)it is not easy to understand this . so it's better that I just remember the main things only by the way thanks alot
MOT is a theory that helps in understanding bonding between atoms. You can propose your own. Moreover, we are accustomed to static visualizations. Atleast, visualize dynamically. Then there will be a change.
Very nice explanation
Thanks and welcome
thank you sir you helped me and my friend Pranavi a lot. For your kind information, we got 100% marks on the exam in USA
Thank you. I'm truly glad that the content helped you and Pranavi achieve 100% on your exam in the USA.
Wishing you both continued success in your studies.
Great video.Cleared all concepts
Thank you. Glad to hear that.
Waaaaaaaaaaaooo❤❤
All the best. Thank you
noone explained better than this. thank you sir
Thank you. Most welcome. All the best.
Good explanation.. Useful formulas.. Thank you 😀
Glad it was helpful!
Thankyou very much sir for giving us so nice visual explanation . Atlast I have got the video for which i was searching for.
You are most welcome
It's worthy,for IIT Advance level students
Principles maximum KY hai
Amazing!
thank you
Also Watch ruclips.net/video/JvgX-QNc8gU/видео.html for activation energy
sir it was awesome.u just cleared all my doubts thanks a lot
Glad to hear that
thank you for clearing my doubts
Most welcome
Sir please make more videos for class 11 IIT JEE preparation
Sure. You will get them sooner. Currently working on a few topics.
ruclips.net/video/7tOyRqd-cQY/видео.html
Easy and accurate teaching , amazing 😄
Glad you think so!
very nice explanation sir
my all doubts are cleared
Glad to hear that. All the best.
Thank you very much for this concise video! Helped me a lot!
Glad you liked it.... thank you
To the point explanation. Cleared my doubts. 🙏🏽
Glad to hear! Thank you. All the best.
@@AdiChemAdi Pleasure is all mine Sir. 🙏🏽
Thnx for the explanation sir
Thank you. Always welcome
Thank you so much sir
Most welcome... thank you...
.all the best.
Also Watch ruclips.net/video/JvgX-QNc8gU/видео.html for activation energy
Good morning sir, I have a question from NEST exam ---Q1 In H atom, the electron is bound by Coulomb interaction and its three quantum numbers n, I, m are related as n=1, 2, 3, 4,...; 1= 0, 1, 2,...n-1; m=-I,-(1-1), 0.., (I-
1),1. The spin quantum number s=1/2 and -1/2. Thus, the maximum number of
electrons that can occupy the first four shells (n = 1, 2, 3, 4) are 2, 8, 18, 32,
respectively. In artificial atoms (atomic clusters), where the electrons are bound by spherical harmonic oscillator potential, n=0,1, 2, 3, 4,.. with I=0, 2, 4, 6,..n, for even n, and I=1, 3, 5, 7,..n, for odd n. The possible values of m and s remain the same as in the case of H atom. The filled shell configuration for this system for filling up to n=1, 2, 3 and 4 will respectively correspond to the electron numbers
Ans
V 1. 8, 20, 40, 70
X 2. 6, 18, 38, 68
Ж з. 6, 12, 20, 30
X 4. 2, 8, 18, 32
Question Type : MCQ
Question ID: 4941032050
Status: Answered
Chosen Option: 3
Marks : -1.00
I am getting like this:
n=0
l=0
m=0
s=2 (electrons possible)
n=1
l=1
m=-1, 0, +1
s=6
n=2
l=0,2
m=0; -2,-1,0,+1,+2
s=12
n=3
l=1,3
m=-1, 0, +1 ; -3,-2,-1,0,+1,+2,+3
s=18
@@AdiChemAdi Thank you sir for your time, but the right answer they have given is option 1
@@neetujain6949 data or the representation of question might be wrong or something is missing
thank you sir
Most welcome. All the best. Thank you.
Principles maximum KY hai
I think you are asking about the peak point at which the probability is maximum...
@@AdiChemAdi aap usme bol rahe principle maxima Wahi puch rahe sir
Thanks u so much sir❤️❤️
You are most welcome
This is so good! Thank you sir!! 😊
Glad you liked it! You are most welcome.
Make for angular function too sir👍
Hmm. They are too complex. Require 3d environment.
Thank you for saving me from failing
thank you . welcome
Thanku so much sir❤
Thank you. All the best.
Sir what is the value of "sy".pls tell me sir
Psi can have any value from negative infinity to the positive
Sir kindly make a video on NMR or PMR
sure. How is this video? Any suggestion?
Sir your teaching method is very nice and video is👌👌
Good
Thanks
As per our NCERT it is wrong for 1s ...
Please check again the book. Those are psi and psi2 graphs.
There is a drawing mistake in NCERT
yes. there were few mistakes.
nice sir tq
Welcome
This was so clearly explained. It definitely helped!
glad it helped.
This was very helpful thank you 🙏
Glad it was helpful!
10:44 reason?
there are inner orbitals which take more space nearer to the nucleus when compared to the outer ones.
Why the peak of 1s is higher than that of 2p
for 1s the peak is also narrow and 2p is a bit wider. I think you got it i.e. The area under the curve.
Sir why does graphs of p orbital in radial wave function vs r starts from non zero value plzz sir help
radial wave function or some other parameter?
@@AdiChemAdi sir radial wave function . sir in radial wave function vs r ( distance from nucleus ) graph for s orbital it starts from non zero vale and in p d f orbitals it starts from zero ??? why so?
Yes. This is weird. But must have a meaning. Reason might be for 1s, there is a "mathematical" probability of finding the electron at nucleus, which is not possible. Or it indicates highest penetration power for the closest electron i.e. 1s.
@@AdiChemAdi penetration power? it is closeness of electron to the nucleus right? also can u tell me how peaks of radial probablity distribution curves related to penetration power of an orbital ??
yes. Too much closeness. Sorry, "peaks of radial probablity distribution curves related to number of peaks"...........I dont follow this...
I have just one question that the nodes that we get in radial probability function graph are of same orbital or other orbitals are also considered say In 1s no node but in 2s one node that node is after 1s ? am I right and 2nd question is whether the increase in height of graph in 2s orbital for first time is because of 1s bcz if the radial probability function graph are solely for particular orbital there should be one maxima only.if you are not able to understand what I am saying u can call me also I will give my number but please clear my confusion I am having headache
Good question. These were plotted for different orbitals in hydrogen atom as shown clearly in the video. Node is the one with zero psi value (trough). I understood your question. first graph is for 1s. second graph is for 2s. But the 2s graph does not include 1s. They are separately plotted.
@@AdiChemAdi ok thnks it means they are for particular orbital only. some chances are there that 2s electrons can also be near to nucleus.
Yes. The electron of every orbital has a tendency to spend its time nearer nucleus and is referred to as penetration power.
@@AdiChemAdi new in class 11 have to learn a lot more . hope with the help of your videos also I can do my preparation. may God bless u 😊
Welcome. Let me know if you want video on any topic. I will try my best to make one.
Sir can you tell one thing that for a 2s probability density graph there are 2 humps. Now my question is whether the 1st hump represents the 1s and the 2nd hump represents the 2s ??
No. two humps belong to same 2s orbital. For 1s, there is different graph.
@@AdiChemAdi sir then is the first hump created for the penetration power of 2s?
Logically, it may suggest penetration power. Not sure.
@@AdiChemAdi sir can you just confirm it..... It will be a great help
@@AdiChemAdi and sir if the node is for 2s only then what remains sin between 1s and 2s
Thanks sir
Welcome
Hello sir,
In this video question part according to your explanation no of radial node is equal to trough so 3s orbital present two radial node so two trough. Similarly no of peak is three based on above condition option 2 is correct but you can told 3 is correct please explain sir which is correct.
Thank you.
May I know which question...
Really sorry sir I understood 3s orbital.
Now I realized question given 3p orbital so answer is correct thank you so much for replying once again thank you sir.
Yes...it is for 3p....
sir can you please clear my one more doubt . I am not able to understand that how in hydrogen two atomic orbitals give 2 molecular orbital as if two waves can either do constructive overlap or destructive overlap but in my book it is written that two waves do constructive and destructive .
When constructive addition occurs, the intensity of the wave increases in the space where they are overlapping (between the two nuclei, hence bonding MO, more attraction for the electrons, low PE, more stable). In case of destructive addition, the intensity is reduced, only in the region of overlapping (antibonding MO, because the electron density is reduced in between the two nuclei, less attraction, more PE, less stable )
@@AdiChemAdi sir it means that two waves do both constructive and destructive overlap?
Actually, when the +psi part of the wave combines with -psi part it reduces the psi value i.e. destructive. Otherwise constructive. These are the mathematical possibilities.
@@AdiChemAdi hmm I think in this class( 11 I am in this class)it is not easy to understand this . so it's better that I just remember the main things only by the way thanks alot
MOT is a theory that helps in understanding bonding between atoms. You can propose your own. Moreover, we are accustomed to static visualizations. Atleast, visualize dynamically. Then there will be a change.
On shanti sir are you BK ???? I am also BK.!!!👍👍👍👍❤️❤️❤️
Om Shanti. Yes. Great to hear this.
thank. you.
Thank you...
Google baba is the secret of my energy 🙂
Most welcome
sir r u a bk??
Yes.
@@AdiChemAdi omshanti bhaiya, glad to see a angelic soul of baba helping others in this modern platform
Om Shanti Bhayya. Thank you. Where are you from?
🙏🙏🙏🙏🙏
welcome
Om shanti bhaiji
om shanti bhayya.
Om shanti 🙏🏻😊
❤
welcome
Thank you sir
Thank you. You are most welcome. All the best.
Thanks sir
Welcome