Gold (Au) is one of the least reactive metals and does not react with oxygen ... four different metals reacting with water: A - Lithium (Li) B - Calcium (Ca) C - Silver (Ag) D - Potassium ...

4th Period: Potassium and Calcium—Electrons go into the fourth energy level. A small piece of sodium metal is placed in water. The sodium reacts with the water and gets very hot, producing sodium ...

A little water helps expose the sodium so it can react with the chlorine gas. The reaction releases a lot of heat as the ... The positive and negative ions attract each other and form the ionic ...