Question

what is the smallest particle of the element gold (au) that can still be classified as gold?
(a) atom
(b) proton
(c) muon
(d) molecule

Explanation:

Gold is an element. An atom is the smallest particle of an element that still retains the properties of that element. Protons are sub - atomic particles within an atom, neutrons are also sub - atomic particles, and a molecule is made up of two or more atoms.

Answer:

A. Atom