Question

reactivity quick check
which elements on the periodic table are the least reactive? (1 point)
the group with fluorine at the top
the group with hydrogen at the top
the group with carbon at the top
the group with helium at the top

Explanation:

Noble gases are the least reactive elements. The group with helium at the top is the noble - gas group. Fluorine is highly reactive (halogen group), hydrogen and carbon are also quite reactive in many chemical processes.

Answer:

the group with helium at the top