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Tardigrade
Question
Chemistry
In Cu (At. No.29)
Q. In
C
u
(
A
t
.
N
o
.29
)
1515
187
Rajasthan PMT
Rajasthan PMT 2010
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A
13 electrons have spin in one direction and 16 electrons in other direction
B
14 electrons have spin one direction and 15 electrons in other direction
C
one electron can have spin only in the clockwise direction
D
None of the above is correct
Solution:
C
u
(Atomic no.
=
29
)
=
1
s
2
,
2
s
2
2
p
6
,
3
s
2
3
p
6
3
d
10
,
4
s
1
∵
In an orbital the two electrons must have the opposite spin.
∴
In
C
u
,
14
electrons have spin in one direction and
15
electrons in other direction.