Two atoms of the same element are most likely to form

Two atoms of the same element are most likely to form Molecule.

Explanation:

are some examples

1 molecule of fluorine contains 2 atoms of Fluorine.

Similarly,

One molecule of chlorine (Cl),  

One molecule of bromine (Br),  

One molecule of iodine  (I)

Each contains two atoms of the same element.  We call these molecules as homodiatomic molecules.

There are 7 diatomic molecules which are as follows,

They are and

answer; protein;

the answer is definitely c.