What are 3 characteristics of carbon that make it a unique element

1)Carbon is abundant and common
2)forms strong covalent bonds
3)has four valence electrons
4)variety of shapes
5)bonds with multiple elements.

(1) Although it is a nonmetal, the graphite allotropic form of carbon conducts electricity, because only three out of four of its valence electrons are shared with other surrounding carbon atoms, allowing the fourth one to wander from atom to atom reminiscent of a metallic bond.
(2) Carbon has the ability to form covalent bonds with other carbon atoms forming continuous chains, branches, and loops. Consequently, theoretically there is no limit to compounds of carbon that are the subject of organic chemistry.
(3) Carbon compounds are the backbone of all organic compounds that are the basic building blocks of all living things.

This is what i found on google“ the monomers combine with each other via covalent bonds to form larger molecules known as polymers. in doing so, monomers release water molecules as byproducts. this type of reaction is known as dehydration synthesis, which means “to put together while losing water. in the process, a water molecule is formed.” i hope this you