Name
(a) threeelements that have a single electron in their outermost shells.
(b) twoelements that have two electrons in their outermost shells.
(c) threeelements with filled outermost shells.

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Solution

(a) Lithium (Li), sodium(Na), and potassium (K) have a single electron in their outermostshells.
(b) Magnesium (Mg) and calcium(Ca) have two electrons in their outermost shells.
(c) Neon(Ne), argon (Ar), and xenon (Xe) havefilled outermost shells.

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Name

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

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

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.

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