Question

these elements are the least likely to become involved in chemical reaction a) alkali metals b) halogens c) noble gases d) transition metals e) rare earth metals

Answer 1

Noble gases hardly ever participate in chemical reactions because they already have 8 valence electrons and are the most stable among other elements.

Therefore, C. noble gases is the correct answer.

Hope this would help~

Answer 2

Noble Gases because their outer ring of electrons is full. Their full outer ring make it harder for the electrons to pull apart because their charge keeps them closer together.