What is the smallest piece of matter that still retains?
Excuse me, but could you please clarify your question? It seems to be incomplete or phrased in a way that's a bit confusing. Are you asking about the smallest piece of matter that still retains certain properties or characteristics? If so, the answer would depend on what properties you're referring to. For example, in physics, the smallest piece of matter that still retains the properties of an ATOM is, well, an atom itself. Atoms are the building blocks of all matter and are made up of even smaller particles like protons, neutrons, and electrons. However, if you're asking about the smallest piece of matter that still retains some specific property or characteristic beyond the atomic level, then the answer might be more complex. For instance, the smallest piece of matter that still retains the property of electrical charge is a quark, a fundamental particle that's even smaller than an atom. So, could you please elaborate on your question? What specific property or characteristic are you referring to when you ask about the smallest piece of matter that still retains it?