Answer: Option (B) is the correct answer.
Step-by-step explanation:
An element is a substance that contains same type of atoms.
For example sulfur is an element. And when we say 8S then it means there are 8 atoms of sulfur element are present.
On the other hand, when there are more than one atom is chemically combined to same or different element then it is known as a molecule.
For example,
is a molecule.
Thus, we can conclude that the difference between 8S and S8 is that 8S represents eight sulfur atoms and S8 represents one sulfur molecule.