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Standard XII
Chemistry
Chemical Reactivity
Question
Which pair of elements of atomic numbers given below will have similar chemical properties?
13
,
22
3
,
11
4
,
24
2
,
4
A
3
,
11
B
4
,
24
C
13
,
22
D
2
,
4
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Solution
Verified by Toppr
The elements with the atomic number
3
and
11
have the same properties because both elements have same valence shell configuration, i.e.,
n
s
1
.
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