Polymers are formed by joining several units called monomers.what does the term monomer refer to?

the answers are

a unit made up of several compounds

a unit made of several atoms

a unit made of several molecules

Verified Answer :

A monomer is a molecule, which means that it is a group of two or more atoms, which are bound in a chemical bounds. So the correct answer is a unit made of several atoms. 

The term monomer refers to
:


a unit made up of several atoms


Explanation:


A monomer is a molecule that "can support polymerization whereby providing constitutional units to the fundamental structure of a macromolecule". Large quantities of monomers combine to form polymers in a method called polymerization.