Answer:
answer is Proton.
Explanation:
because electron is too heavy and other one has no charge
The compound that is most likely to be ionic is BaCl2
Ionic compounds are compounds made up of ions. These ions are atoms that gain or lose electrons, giving them a net positive or negative charge. Metals tend to lose electrons, thus they become cations and have a net positive charge. Non metals tend to gain electrons, forming anions that have a net negative charge.
I think it's letter:
B.Coefficients are placed in front of the reactants and/or products
