The term that can be used to describe this model element compound or molecule is compound. The correct option is b, compound.
<h3>What are compounds?</h3>
Chemical Compounds are substances that are made by joining two or more chemical elements or substances. Compounds are always made of two or more elements.
The picture is given of ammonia, which is made up of nitrogen and hydrogen. The formula of ammonia is NH₃. The compounds are made up of the joining of molecules that are the smallest unit of these compounds.
Thus, the term that will use is compound. The correct option is b.
To learn more about compounds, refer to the link:
brainly.com/question/14117795
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