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JEE Main Chemistry Class 12 The D and F Block Elements Part 1 Questions
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© examsnet.com
Question : 28
Total: 100
The correct electronic configuration and spin-only magnetic moment
(
B
M
)
of
G
d
3
+
(
Z
=
64
)
, respectively, are:
[Sep. 05,2020(I)]
[Xe]
4
f
7
and 8.9
[Xe]
4
f
7
and 7.9
[
X
e
]
5
f
7
and 8.9
[Xe] 5f and 7.9
Validate
Solution:
Electronic configuration of 64
G
d
=
[
X
e
]
4
f
7
5
d
1
6
s
2
64
G
d
3
+
=
[
X
c
]
4
f
7
No. of unpaired electron
=
7
µ
=
√
n
(
n
+
2
)
B
M
=
√
63
=
7.93
B
M
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