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Byju's Answer
Standard IX
Chemistry
Octet Rule
Why are some ...
Question

Why are some elements chemically inert?

A
Because their outermost shell is completely empty
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B
Because their outermost shell is completely filled
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C
Because their innermost shell is completely empty
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D
Because their innermost shell is completely filled
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Solution

The correct option is C Because their outermost shell is completely filled
Due to the fully filled outermost shell, the elements are stable. Hence they do not take part in the reaction.

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