Question

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

Explanation:

Helium is a noble gas. Noble gases have a full - valence electron shell, making them very stable and least reactive among the given options. Hydrogen is reactive as it can form compounds easily. Fluorine is highly reactive as it is a halogen and has a strong tendency to gain an electron. Carbon can form a wide variety of compounds and is relatively reactive.

Answer:

the group with helium at the top