During the formation of sodium chloride, chlorine accepts one electron from sodium to attain the configuration of which noble gas?
A
Neon
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B
Helium
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C
Argon
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D
Xenon
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Solution
The correct option is C Argon Chlorine has 7 electrons in its valence shell. It accepts one electron to attain noble gas configuration of argon as chlorine has now 18 electrons in its outermost shell.