Control rods are placed in a nuclear reactor. Control rods absorb many neutrons but they themselves do not undergo nuclear fission reaction. Control rods are made up of elements like boron, cadmium, silver and Indium.
As they are inert control rods help to regulate the rate of fusion reaction of plutonium and uranium in a nuclear reactor.
To be stable an atom will gain, lose, or share electrons to complete the outer most energy level (electron shell). Octet Rule because levels 2 and 3 need 8 electrons to be stable.
Sodium hypochlorite is a corrosive base with pH 13, that will react with water in a neutralization process to finally obtein hypochlorous acid. This acid has a great disinfectant effect in water.