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?
Is it possible for a nonmetal to be more reactive than a metal?
Yes, it is possible for a nonmetal to be more reactive than a metal. This can occur when comparing elements from different groups on the periodic table or when comparing elements that are located close together in a group. For example, fluorine is more reactive than lithium, which is a metal.