Question

When the value of principal quantum number n is 3, then the permitted value of azimuthal quantum numbers $$\displaystyle l$$ and magnetic quantum numbers 'm' are ?

A
l = 0, 1, 2.  ;  m = 0,+1,-1,+2,-2
B
l = 1, 2, 3.   ;   m = 1, +2, 1, -2, +3, +2, 1, -2, -3
C
l = 0, 1 , 2 ; m = 0, 1, 2 ,3 ,2 ,0, 1,, 2, +3, +2, 1, -2, -3.
D
l= 1 ,3  ; m = 0, 1, 0, 1, 2, 3

Solution

The correct option is A $$\displaystyle l$$ = 0, 1, 2.  ;  m = 0,+1,-1,+2,-2When the value of principal quantum number n is 3 the permitted value of azimuthal quantum numbers $$\displaystyle l$$ and magnetic quantum numbers 'm' are $$\displaystyle l$$ = 0, 1, 2 m = 0,+1,0,-1,+2,+1,0,-1,-2For a given value of the principal quantum number, the azimuthal quantum number l can values 0,1 ,2....n-1.For a given value of azimuthal quantum number, the magnetic quantum number m can take values $$-l, .....-2,-1,0,+1,+2.....+l$$Chemistry

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