Answer:
The representative particle for an element is AN ATOM.
Explanation:
Representative particle of a substance refers to the smallest unit of that substance, which can not be broken down into smaller particles. The representative particles of an element is an atom, because each element is made up of atoms, which are the smallest unit of that element; they can not be broken down further.
A representative particle is chemically identical with the parent element and will have all the properties of the parent element.