Which describes the substances that form covalent bonds? a metal and a metalloid a metal and a nonmetal two nonmetals two metals

Two non metals

Explanation:

Covalent bonding is a chemical bonding that involves sharing of electrons

a metal and a metalloid can be described as a metallic bond.

a metal and a nonmetal is an example that describes an ionic bonding

While two non metals is a typical example of a covalent bonding.

Therefore, two non metals describes the substances that form covalent bonds

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.