Question

Atoms of the LEAST reactive elements tend to have A. one or seven valence electrons. B. eight valence electrons. C. four or five valence electrons. D. no valence electrons

Answer 1

The answer is B, 8 electrons because these elements that a full outer valence shell

Answer 2

The answer to this question would be: B. eight valence electrons.

An atom has a tendency to make their valence electrons full. The way to do it by reacting with other atoms. That means the atom with full valence electron will be the one who least likely to react. Eight valence electrons atoms will be the least likely to react. The atom in this group is called noble gas in the periodic table.