Why are some elements chemically inert?

Because their outermost shell is completely empty

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Because their outermost shell is completely filled

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Because their innermost shell is completely empty

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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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Similar questions

Q. (a) Name three elements that have a single electron in their outermost shells.
(b) Name two elements that have two electrons in their outermost shells.
(c) Name three elements with completely filled outermost shells.

Which of the following elements has completely filled outermost shells?

Atoms are said to be completely filled when all the available shells are completely filled with electrons. Which of the following elements has completely filled outermost shell in its atoms?

Name:

1. Three elements having a single electron in their outermost shell.

2. Three elements with filled outermost shell.

3. Three elements having 7 electrons in their outermost shell.

Q. Assertion (A): Noble gases have highest ionization energies in their respective periods.
Reason (R): The outermost shell of noble gases is completely filled.

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Why are some elements chemically inert?

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

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.