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Byju's Answer
Standard IX
Chemistry
Quantum Number
For principal...
Question
For principal quantum number
n
=
4
, the total number of orbitals having
l
=
3
is:
A
3
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B
7
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C
5
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D
9
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Solution
The correct option is
B
7
For
n
=
4
and
l
=
3
, the orbital is
4
f
.
Number of values of
m
=
no. of orbitals
=
(
2
l
+
1
)
=
7
.
Hence, the correct option is
B
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