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Byju's Answer
Standard X
Chemistry
Tetravalency
What is the v...
Question
What is the valency of chlorine?
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Solution
Valency
The valency of an atom refers to its ability to combine with other atoms.
The valency of an element determines the number of bonds that an atom can make as part of a complex.
The valence of an element is the number of hydrogen atoms that can mix with or replace one of the element's atoms (directly or indirectly).
Valency of Chlorine
Chlorine has an atomic number of
17
.
Chlorine's electrical configuration is
[
Ne
]
3
s
2
3
p
5
, which can also be represented as
2
,
8
,
7
.
This demonstrates that chlorine's outermost shell has seven valence electrons.
If there are more than four valence electrons, the valency can be determined as follows:
Valency
=
Valence
electron
-
8
As a result, chlorine has a valency of
8
-
7
, which is
1
.
Hence, chlorine has a valency of
1
.
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Similar questions
Q.
(a) What type of chemical bond is present in chlorine molecule? Explain your answer.
(b) Explain the formation of a chlorine molecule on the basis of electronic theory of valency.