Final answer:
Oxygen is an active nonmetal element, exemplifying nonmetal characteristics by gaining electrons in reactions.
Explanation:
Oxygen is an example of an active nonmetal. Nonmetals are located on the right side of the periodic table and tend to gain electrons in chemical reactions.
For example, oxygen readily forms compounds by gaining electrons to achieve a stable electron configuration. This behavior is characteristic of nonmetals.
In contrast, zinc is a metal that tends to lose electrons in reactions, making it different from the active nonmetal category.
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