Elements with eight electrons in their outermost energy shell are called :

noble gases

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halogens

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alkali metals

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alkaline earth metals

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Solution

The correct option is A noble gases
Noble gases are the members of group $18$ of the modern periodic table which are $H e, N e, A r, K r, X e$ and $R n$ . They have completely filled valence shells and valence shell is the outermost energy shell.

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Similar questions

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.

Name

(a) three elements that have a single electron in their outermost shells.

(b) two elements that have two electrons in their outermost shells.

8

+ \frac{1}{2}

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