Memorization for the Chem Summer Assignment

Nonmetals

Group 17 (Halogens)

• Fluorine (F) -1

• Chlorine (Cl) -1

• Bromine (Br) -1

• Iodine (I) -1

Group 16

• Oxygen (O) -2

• Sulfur (S) -2

Group 15

• Nitrogen (N) -3

Metals

Group 1 (Alkali Metals)

• Hydrogen (H) +1

• Lithium (Li) +1

• Sodium (Na) +1

• Potassium (K) +1

• Rubidium (Rb) +1

• Cesium (Cs) +1

Group 2 (Alkaline Earth Metals)

• Beryllium (Be) +2

• Magnesium (Mg) +2

• Calcium (Ca) +2

• Strontium (Sr) +2

• Barium (Ba) +2

Transition Metals

• Chromium (II) (Cr) +2

• Chromium (III) (Cr) +3

• Cobalt (II) (Co) +2

• Cobalt (III) (Co) +3

• Copper (I) (Cu) +1

• Copper (II) (Cu) +2

• Gold (I) (Au) +1

• Gold (III) (Au) +3

• Iron (II) (Fe) +2

• Iron (III) (Fe) +3

• Nickel (II) (Ni) +2

• Silver (Ag) +1

• Zinc (Zn) +2

Other Metals

• Aluminum (Al) +3

• Lead (II) (Pb) +2

• Lead (IV) (Pb) +4

• Tin (II) (Sn) +2

• Tin (IV) (Sn) +4

Polyatomic Ions

• Ammonium (NH₄⁺) +1

• Acetate (C₂H₃O₂⁻) -1

• Bicarbonate/Hydrogen carbonate (HCO₃⁻) -1

• Hypochlorite (ClO⁻) -1

• Chlorite (ClO₂⁻) -1

• Chlorate (ClO₃⁻) -1

• Perchlorate (ClO₄⁻) -1

• Cyanide (CN⁻) -1

• Hydroxide (OH⁻) -1

• Nitrite (NO₂⁻) -1

• Nitrate (NO₃⁻) -1

• Permanganate (MnO₄⁻) -1

• Carbonate (CO₃²⁻) -2

• Peroxide (O₂²⁻) -2

• Sulfite (SO₃²⁻) -2

• Sulfate (SO₄²⁻) -2

• Phosphite (PO₃³⁻) -3

• Phosphate (PO₄³⁻) -3