charges of ions

• group 7

  1-
• group 6

  2-
• group 5

  3-
• group 3

  3+
• group 2

  2+
• group 1

  1+
• Sulfate


  SO4 2-
• Nitrate


  NO3-
• Carbonate


  CO3 2-
• Ammonium


  NH4+
• Hydroxide


  OH-
• Hydrogen


  H+
• Zn

  2+
• Pb

  2+
• Fe

  2+, 3+
• Cu

  2+
• Ag

  1+