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Standard XII
Chemistry
Chemical Reactivity
The valance e...
Question
The valance electron present in group 17 elements is:
A
1
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B
2
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C
6
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D
7
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Solution
The correct option is
D
7
Group 17 elements has outer configuration as
n
s
2
n
p
5
so this group has 7 valence electrons.
Option D is correct.
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