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Alkali metals
- Group 1A
- Li, Na, K, Rb, Cs, Fr
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Alkaline earth metals
- Group 2A
- Be, Mg, Ca, Sr, Ba, Ra
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Nobel gases (or rare gases)
- Group 8A
- He, Ne, Ar, Kr, Xe, Rn
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H+
- Cation
- Hydrogen ion
- Charge: 1+
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Li+
- Cation
- Lithium ion
- Charge: 1+
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Na+
- Cation
- Sodium ion
- Charge: 1+
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K+
- Cation
- Potassium ion
- Charge: 1+
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Cs+
- Cation
- Cesium ion
- Charge: 1+
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Ag+
- Cation
- Silver ion
- Charge: 1+
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Mg2+
- Cation
- Magnesium ion
- Charge: 2+
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Ca2+
- Cation
- Calcium ion
- Charge: 2+
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Sr2+
- Cation
- Strontium ion
- Charge: 2+
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Ba2+
- Cation
- Barium ion
- Charge: 2+
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Al3+
- Cation
- Aluminum ion
- Charge: 3+
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NH4+
- Cation
- Ammonium ion
- Charge: 1+
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Co2+
- Cation
- Cobalt (II) or cobaltous ion
- Charge:2+
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Cu2+
- Cation
- Copper (II) or Cupric ion
- Charge: 2+
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Fe2+
- Cation
- Iron (II) ferrous ion
- Charge: 2+
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Mn2+
- Cation
- Mangnese (II) or manganous ion
- Charge: 2+
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Hg22+
- Cation
- Mercury (I) or Mercurous ion
- Charge: 2+
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Hg2+
- Cation
- Mercury (II) or mercuric ion
- Charge: 2+
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Ni2+
- Cation
- Nickel (II) or nickelous ion
- Charge: 2+
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Pb2+
- Cation
- Lead (II) or phumnous ion
- Charge: 2+
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Sn2+
- Cation
- Tin (II) or stannous ion
- Charge: 2+
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Cr3+
- Cation
- Chromium (III) or chromic ion
- Charge: 3+
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Fe3+
- Cation
- Iron (III) or ferric ion
- Charge: 3+
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H-
- Anion
- Hydride ion
- Charge: 1-
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F-
- Anion
- Fluoride ion
- Charge: 1-
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Cl-
- Anion
- Chloride ion
- Charge: 1-
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Br-
- Anion
- Bromide ion
- Charge: 1-
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I-
- Anion
- Iodide ion
- Charge: 1-
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CN- or C2H3O2-
- Anion
- Acetate ion
- Charge: 1-
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ClO3-
- Anion
- Chlorate ion
- Charge: 1-
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ClO4-
- Anion
- Perchlorate ion
- Charge: 1-
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NO3-
- Anion
- Nitrate ion
- Charge: 1-
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MnO4-
- Anion
- Permangnate ion
- Charge: 1-
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O22-
- Anion
- Peroxide ion
- Charge: 2-
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S2-
- Anion
- Sulfide ion
- Charge: 2-
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CO32-
- Anion
- Carbonate ion
- Charge: 2-
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CrO42-
- Anion
- Chromate ion
- Charge: 2-
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Cr2O72-
- Anion
- Dichromate ion
- Charge: 2-
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SO42-
- Anion
- Sulfate ion
- Charge: 2-
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PO43-
- Anion
- Phosphate ion
- Charge: 3-
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