The correct answer is c. electron – atom – molecule
Here's the explanation of the following matter:
- Electron - It is one among the smallest components of an atom and a subatomic particle that revolves the nucleus of an atom.
- Atom - Elements are made of atoms merging. The fundamental component of matter, an atom is made up of protons and neutrons in its nucleus and electrons surrounding it. ( Protons are positive charge while Neutrons are Neutral ( no charge ) .
- Molecule - It is the smallest unit of a compound and is bigger than an atom. Molecule is also a collection of two or more atoms joined by bonding molecules.
- Polymer - is a large molecule made up of subunits continuously repeat.
- Compound - A substance created by the chemical bonding of two or more components.