N ,m , l , s are not shells..!! These are quantum numbers...!!
Are you from india....??
If you are from indian CBSE board then did you read atomic structure from NCERT ...??
Its not about from which part of the world you belong the main thing is that did you read about atomic structure....??
I am from Pakistan , we have same study structure as india .
sorry sir, i was wrong my mistake, i dont know why i choosed science , i am such a dumb person on this earth, btw, the mistake i made was that if u guys clearly see the answer A and B u will come to know that it is written n =3 , l=2 ,m=0 , now what i thought was that this "l" is actually L of energy level shell , but i was wrong its capital L for energy shell , the small "l" is for magnetic quantum number which decides the orientation of orbitals in the space, in applied magnetic field .
I am still getting confused , please tell me that the questino aska which electrons has highest energy then how should i solve it or choose answer. I have lost all hopes believe me , 1 week has been passed i cant figure out even the basic of subject how I am going to be a doctor , I should leave science and join painting class , i dont deserve it .
so , i want to ask that the difference between both answers is in l=0 and l=2 . what is such thing which make us select l=2 as a correct answer . help