1 In what type orbital are the outer electrons of the atoms of the elements of Group 1 (IA) and Group 2 (IIA)?​

s orbital

Explanation:

The elements of Group 1 (IA) and Group 2 (IIA) have one and two electrons in their outermost shells respectively.

For the elements in group Group 1 (IA), the general outer electron configuration is ns1. This last electron is accommodated within an s orbital.

For the elements in Group 2 (IIA), the two outermost electrons are accommodated in an ns orbital, hence the answer.

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explanation:

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