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Common Ions - Chemistry 101 Common Ions to Learn...

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Chemistry 101 Common Ions to Learn Cations (Only One Ion Possible) ( Elements w/Multiple Ions) Formula Name Formula Name +1 Charge Li + Lithium ion Cu + Copper (I) or cuprous ion Na + Sodium ion K + Potassium ion Rb + Rubidium ion Cs + Cesium ion H + Hydrogen ion Ag + Silver ion NH 4 + Ammonium ion +2 Charge Be 2+ Beryllium ion Co 2+ Cobalt (II) ion Mg 2+ Magnesium ion Cr 2+ Chromium (II) ion Ca 2+ Calcium ion Cu 2+ Copper (II) or cupric ion Sr 2+ Strontium ion Fe 2+ Iron (II) or ferrous ion Ba 2+ Barium ion Mn 2+ Manganese (II) ion Zn 2+ Zinc ion Hg 2 2+ Mercury (I) ion Cd 2+ Cadmium ion Hg 2+ Mercury (II) ion Ni 2+ Nickel (II) ion Pb 2+ Lead (II) ion Sn 2+ Tin (II) ion +3 Charge Al 3+ Aluminum ion Bi 3+ Bismuth (III) ion Co 3+ Cobalt (III) ion Cr 3+ Chromium (III) ion Fe 3+ Iron (III) or ferric ion +4 Charge Pb 4+ Lead (IV) ion Sn 4+ Tin (IV) ion Ti 4+ Titanium (IV) ion +6 Charge Cr 6+ Chromium (VI) ion THE CATIONS IN THE LEFT COLUMN MUST BE MEMORIZED. They do not require the use of a roman numeral to indicate the charge on the ion because only one ion is possible for these elements (and ammonium ion). The cations in the right column are provided for you to see
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