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Tarun Saxena Grade: 12
        in any subshell , max. no. of e- having same value of spin quantum no. is L+2 , how?
6 years ago

Answers : (1)

SAGAR SINGH - IIT DELHI
879 Points
										

Dear tarun,


The Azimuthal quantum number determines the angular momentum of the electron, denoted by the letter 'l'. The value of 'l' gives the sub level or sub shell in a given principal energy shell to which the electron belongs. It can have only positive integral values from zero to (n-1) where 'n' is the principal quantum number. The various sub shell values of l are also designated by the letters s, p, d, f,…… For any main energy level, the energies of the sub shell follow the order s > p > d > f.


The different sub shells are represented by first writing the value of 'n' and then the letter designated for the value of 'l'.


To illustrate,


n = 1 l = 0 one sub shell 1s


n = 2 l = 0,1 two sub shells 2s, 2p


n = 3 l = 0,1,2 three sub shells 3s, 3p, 3d


n =4 l = 0,1,2,3 four sub shells 4s, 4p, 4d, 4f


Thus for each value of 'n' there are 'n' values of 'l'.


The value of azimuthal quantum number gives the shape of the sub shell or orbital. So it is also called as orbital quantum number.


 








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Sagar Singh


B.Tech, IIT Delhi

















6 years ago
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