Elements having a single electron in their outermost shell is :

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all of these

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Solution

The correct option is D all of these
$L i - 1 s^{2}, 2 s^{1}$
$N a - 1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{1}$
$K - 1 s^{2}, 2 s^{2}, 2 p^{6}, 3 s^{2}, 3 p^{6}, 4 s^{1}$

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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.

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