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Byju's Answer
Standard XII
Physics
Energy Band Diagrams
The four quan...
Question
The four quantum numbers for the valence shell electron or last electron of sodium (Z = 11) is
A
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B
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C
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D
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Solution
The correct option is
B
Valence electron of sodium is
3
S
1
for that
n
=
3
,
l
=
0
,
m
=
0
,
s
=
+
1
2
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33
Similar questions
Q.
Which set of quantum numbers is possible for the last electron of Mg
+
ion?
Q.
The correct set of four quantum numbers for the valence electron of Rubidium (Z = 37) is:
Q.
Which of the following sets of quantum numbers is correct for an electron in
4
f
−
orbital?
Q.
Arrange the electrons represented by following set of quantum numbers in decreasing order of energy.
(A)
n
=
4
,
l
=
0
,
m
=
0
,
s
=
+
1
2
(B)
n
=
3
,
l
=
1
,
m
=
1
,
s
=
−
1
2
(C)
n
=
3
,
l
=
2
,
m
=
0
,
s
=
+
1
2
(D)
n
=
3
,
l
=
0
,
m
=
0
,
s
=
−
1
2
Q.
The electrons represented by following set of quantum numbers in decreasing order of energy is:
a)
n
=
4
,
l
=
0
,
m
=
0
,
s
=
+
1
2
b)
n
=
3
,
l
=
1
,
m
=
1
,
s
=
−
1
2
c)
n
=
3
,
l
=
2
,
m
=
0
,
s
=
+
1
2
d)
n
=
3
,
l
=
0
,
m
=
0
,
s
=
−
1
2
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