For n=2 shell, how many number of electrons with S= +1/2 and m=0 1) one 2) two 3) three - Chemistry - Structure of Atom

Question

For n=2 shell, how many number of electrons with S= +1/2 and m=0?
1) one 2) two 3) three 4) four Please give a detailed answer

Vartika Jain · Accepted Answer

Dear Student,

For n =2l = 0 to n-1 i e
 0,1Now, m = -l to +lFor l = 0, m = 0an orbital can hold upto 2 electrons, one having S= +12 and other -12So, for l = 0 onlt 1 electron has m = 0 and S= +12Similalry, for l = 1m = -1, 0, +1m = 0 orbital can hold only 1 electron with S= +1/2Hence, total 2 electrons have m =0 and S=+1/2The correct answer is 2) two

For n=2 shell, how many number of electrons with S= +1/2 and m=0? 1) one 2) two 3) three 4) four .Please give a detailed answer.