Which statement describes the difference between an atom of silver and an atom of gold?

A. They have exactly the same isotopes.

B. The atomic numbers are the same.

C. Their atomic masses are different.

D. They have the same number of electrons.

It’s the energy source of stars

I’m not sure what your trying to say here.. can you clarify again?

Polyethylene is a strong synthetic polymer that can be used to make toys and bottles. polyethylene is a plastic material called thermoplastic. one very useful property of thermoplastic is that when it is heated it turns into liquid, which can be molded into desired shape and size. also the material do not dissolve at room temperature.