Final answer:
A compound is made up of different elements bonded together, while a molecule refers to the smallest unit of a compound or an element. N₂ is a molecule but not a compound.
Step-by-step explanation:
A compound is a substance made up of two or more different elements chemically bonded together. For example, H2O is a compound because it contains two hydrogen atoms and one oxygen atom bonded together to form water.
A molecule refers to the smallest unit of a compound or an element that retains its chemical properties. N2 is a molecule because it consists of two nitrogen atoms bonded together, but it is not a compound because it contains only one type of element, nitrogen.
Out of the options provided, N2 is a molecule but not a compound. It is an example of a diatomic molecule, which means it consists of two atoms of the same element bonded together.
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