Question

❝ ɴᴀᴍᴇ :

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

➠ two elements that have two electrons in their outermost shells.

➠ three elements with filled outermost shells.

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Answer 1

Answer:

answer no 1 :-

Elements of group I have one electron in their outermost shells. So, Lithium, Sodium, and Potassium are the 3 elements that have a single electron in their outermost orbit.

answer no 2 :-

Elements of group II have two electrons in their outermost shells. So, Magnesium, Calcium, and Strontium are the 3 elements that have two electrons in their outermost orbit

answer no 3 :-

Helium (He), neon (Ne) and argon (Ar) are three elements (inert gases of group 18) that have a completely filled outermost shell.

Explanation:

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Answer 2

Explanation:

∆nswer;-

→Lithium (Li)

→Potassium (k)

→Sodium (Na)

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