what is the very smallest piece of copper possible? a copper nugget a copper wire a copper atom

what is the very smallest piece of copper possible? a copper nugget a copper wire a copper atom
Answer
Brief Explanations:
Atoms are the basic building - blocks of elements. A copper nugget and a copper wire are macroscopic objects made of many copper atoms. A copper atom is the smallest piece that still retains the properties of copper.
Answer:
a copper atom