9.) Why are the noble gases the least reactive elements? (1 point)

Question

Responses

They have a full valence electron shell.
They have a full valence electron shell.

They are the elements with the smallest atomic mass.
They are the elements with the smallest atomic mass.

They have an empty inner electron shell.
They have an empty inner electron shell.

They are the most electronegative elements.

Answer 1

The correct response is: They have a full valence electron shell.

Noble gases have complete outer electron shells, making them stable and less likely to react with other elements.