Question

What group of elements is the least reactive?

A. halogen
B. alkali metals
C. Noble gases
D. Semiconductor

Answer 1

C) Noble Gases

"Why?"

The Noble Gases have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.

Hope this helps!

Answer 2

b is correct answers because metal have less reactive