Answer: each atom and the shared electrons,
valence electrons
Explanation: A covalent compound is defined as the compound which is formed from the sharing of electrons between the element that are combining together.
These compounds are most likely to be formed when two non-metals combine together. For Examples: [tex]F_2[/tex]
Flourine is an element with tomic number 9 and has 7 valence electrons
[tex]F:9:1s^22s^22p^5[/tex]
Thus for formation of a [tex]F_2[/tex] molecule, they share their valence electrons and attain stable configuration.