Ionic compounds

• What is meant by an ion?

  An ion is a charged atom or molecule
• Which type of atom forms negative ions?

  Nonmetals
• Which type of atom forms positive ions?

  Metals
• What is the chemical formula for the ionic compound Hydrogencarbonate?

  HCO3-
• What is the chemical formula for the ionic compound Nitrate?

  NO3-
• What is the chemical formula for the ionic compound Hydroxide?

  OH-
• What is the chemical formula for the ionic compound Sulphate?

  SO4^2-
• What is the chemical formula for the ionic compound Carbonate?

  CO3^2-
• What is the chemical formula for the ionic compound Ammonia?

  NH4+