Byju's Answer
Standard XII
Chemistry
Anionic Radius
The ionic rad...
Question
The ionic radii of
O
2
−
,
F
−
,
N
a
+
and
M
g
2
+
are in the order :
A
O
2
−
>
F
−
>
N
a
+
>
M
g
2
+
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B
F
−
>
O
2
−
>
N
a
+
>
M
g
2
+
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C
O
2
−
>
F
−
>
M
g
2
+
>
N
a
+
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D
M
g
2
+
>
N
a
+
>
F
−
>
O
2
−
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Solution
The correct option is
A
O
2
−
>
F
−
>
N
a
+
>
M
g
2
+
O
2
−
F
−
N
a
+
M
g
2
+
Z
8
9
11
12
No. of
e
−
10
10
10
10
In isoelectronic species greater the
Z
smaller the radius. So order is
O
2
−
>
F
−
>
N
a
+
>
M
g
2
+
A option is the correct answer
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Similar questions
Q.
For
N
a
+
,
M
g
2
+
,
F
−
and
O
2
−
the correct order of increasing ionic radii is :
Q.
Arrange them in the order of increasing ionic radii.
N3+, O2-, F-, Na+, Mg2+, and Al3+
Q.
The correct order of atomic radii for the following isoelectronic species
F
−
,
O
2
−
,
N
a
+
,
M
g
2
+
is:
Q.
The ions
O
2
−
,
F
−
,
N
a
+
,
M
g
2
+
and
A
l
3
+
are isoelecronic. Their ionic radii show:
Q.
The ions
O
2
−
,
F
−
,
N
a
+
,
M
g
2
+
and
A
l
3
+
are isoelectronic. Their ionic radii show:
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