The chemical formula that has been representing both element and molecule has been, O₂. Thus, option B is correct.
An element has been defined as the same type of repeating unit. The molecule has been defined as the fixed proportion of the elements to form a compound.
Identify is it an element or a molecule
The element has been the presence of only one type of atom. The molecule has presence of more than one atom, of same or different type.
The given chemical formula has diatomic oxygen. It has been an atom as there has been presence of only one type of atom O. It has been considered as a molecule as there has been more than one atom in the structure.
Thus, the chemical formula that has been representing both element and molecule has been, O₂. Thus, option B is correct.
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