Question

If orbital quantum number (L) has values 0, 1, 2 and 3, deduce the corresponding value oſ principal

quantum number, n.
(A) 1
(D) 4
(C) 3
(B) 2
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Answer 1

Answer:

When the value of principal quantum number n is 3 the permitted value of azimuthal quantum numbers l and magnetic quantum numbers 'm' are l = 0, 1, 2 m = 0,+1,0,-1,+2,+1,0,-1,-2

For 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

hence the answer will be 2

Explanation:

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Answer 2

Answer:

Correct answer is 4

Explanation:

1. principle quantum number (n) = 1

so, azimuthal quantum number / orbital

quantum number (l) = 0

2. principle quantum number (n)= 2

so, l = 0 , 1

3. principle quantum number (n)= 3

so , l = 0 , 1 , 2

4. principle quantum number ( n)= 4

so , l = 0 , 1 , 2 , 3

CORRECT OPTION (D)