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Byju's Answer
Standard XII
Chemistry
Quantum Numbers
If ml= magn...
Question
If
m
l
=
magnetic quantum number and
l
=
azimuthal quantum number, then:
A
m
l
=
l
+
2
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B
m
l
=
2
l
2
+
1
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C
l
=
m
l
−
1
2
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D
l
=
2
m
l
+
1
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Solution
The correct option is
C
l
=
m
l
−
1
2
For given azimuthal number
l
magnetic quantum numbers can have values from
−
l
to
+
l
including zero.
Total values of
m
l
=
2
l
+
1
∴
l
=
m
l
−
1
2
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0
Similar questions
Q.
Arrange the electrons represented by the following sets of quantum numbers in decreasing order of energy.
(i)
n
=
4
,
l
=
0
,
m
l
=
0
,
m
s
=
+
1
2
(ii)
n
=
3
,
l
=
1
,
m
l
=
1
,
m
s
=
−
1
2
(iii)
n
=
3
,
l
=
2
,
m
l
=
0
,
m
s
=
+
1
2
(iv)
n
=
3
,
l
=
0
,
m
l
=
0
,
m
s
=
−
1
2
Q.
The quantum number of four electrons are given below:
I.
n
=
4
,
l
=
2
,
m
l
=
−
2
,
m
s
=
−
1
/
2
II.
n
=
3
,
l
=
2
,
m
l
=
1
,
m
s
=
+
1
/
2
III.
n
=
4
,
l
=
1
,
m
l
=
0
,
m
s
=
+
1
/
2
IV.
n
=
3
,
l
=
1
,
m
l
=
1
,
m
s
=
−
1
/
2
The correct order of their increasing energies will be:
Q.
If
m
=
magnetic quantum number,
l
=
azimuthal quantum number, then:
Q.
The set of principal
(
n
)
, azimuthal
(
l
)
and magnetic
(
m
l
)
quantum numbers that is not allowed for the electron in
H
-atom is:
Q.
For angular momentum quantum number (l) = 3, the total number of integer values of magnetic quantum number (
m
l
) will be:
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