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Question

On combining with other elements chlorine acquires the electronic configuration of ___.

A
Neon
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B
Argon
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C
Krypton
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D
Xenon
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Solution

The correct option is B Argon
Elements combine inorder to attain the electronic configuration of the nearest noble gases.
The atomic number of chlorine is 17. It has 7 electrons in its valence shell. It requires one more electron to attain the stable electronic configuration of the nearest noble gas i.e., argon (atomic number =18).
So, on combining with other elements, chlorine acquires the electronic configuration of argon to attain stability.

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