Question

(a) The outermost shell of an atom is known as
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Answer 1

Explanation:

This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons. ... Some atoms can be stable with an octet even though their valence shell is the 3n shell, which can hold up to 18 electrons.

Answer 2

Answer:

Valence Shell

Explanation:

The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bond with other atoms.

This outermost shell is known as the valence shell & the electrons found in it are called valence electrons.