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Byju's Answer
Standard IX
Chemistry
Bohr's Model of an Atom
Radius of 2...
Question
Radius of
2
n
d
shell of
H
e
+
(where
a
0
- Bohr radius)
A
3
a
0
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B
a
0
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C
3
2
a
0
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D
2
a
0
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Solution
The correct option is
D
2
a
0
Radius of the Bohr's orbit is given by,
r
=
h
2
n
2
4
π
2
m
Z
e
2
Substituting values of h, m for helium ion and the electronic charge r may be calculated as
r
=
0.529
n
2
Z
A
0
Where
0.529
A
0
is is the Bohr's radius
a
0
=
0.529
Substituting
Z
=
2
,
n
=
2
r
=
2
a
0
A
0
Suggest Corrections
0
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