You are given a sentence and your task is to generate another sentence that supports the given input.

Q: Classify an element as either a metal or a nonmetal (or an inert gas) from its position on the periodic table.

A: Elements on the periodic table of the elements are classified into categories such as metals and nonmetals.
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Q: A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

A: All chemical reactions involve both reactants and products.
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Q: A lithium atom has a still heavier nucleus and three electrons.

A:
Lithium has three electrons.
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