The conversation between human and AI assistant.
How does the reactivity of metals and nonmetals  change as the atomic numbers of the elements in a group increase?
Can you tell me how the reactivity of metals and nonmetals changes as the atomic numbers of the elements in a group increase?
Of course! In general, the reactivity of metals decreases as the atomic numbers of elements in a group increase. Nonmetals, on the other hand, tend to become more reactive as atomic numbers increase within a group.