H ( hydrogen ) is the answer I believe.
The answer is most likely nonmetals. :)
Answer:
Salt water is, A. a mixture
Transferring or sharing electrons between atoms forms a covalent bond.<span> Covalent
bonding is when atoms share electrons. It is a chemical bond that involves the
sharing of electron pairs. These pairs are called bonding pairs. Examples of
compounds that has covalent bonds are CO2, organic compounds, lipids and
proteins.</span>