Our Ions

Remember, an ion is an element that has gained or lost at least one electron and so has an electrical charge. The electrical charge is shown with a superscript and must include the + or - symbol. Many ions have special endings to let us know they have made the change from element to ion. The chemical and physical properties of ions can be very different from their elements. 

Iron the element is a hard blue gray metal. Fe+3 combines with oxygen to make rust, a soft red material that does not 

conduct electricity and is non-magnetic.

Hint: as you work to memorize these, try grouping them by charge (also called valence). I would put them on color coded flash cards. Tests will be about once a week and will follow the order of ions listed. Study early and often.

For more about ions CLICK HERE

Element name

Ion name

Charge Ion symbol
chlorine chloride -1 Cl-1
hydrogen hydrogen +1 H+1
oxygen oxide -2 O-2
sodium sodium +1 Na+1
neon -- 0 Ne
carbon carbon +4 C+4
magnesium magnesium +2 Mg+2
calcium calcium +2 Ca+2
potassium potassium +1 K+1
bromine bromide -1 Br-1
fluorine fluoride -1 F-1
aluminum aluminum +3 Al+3
sulfur sulfide -2 S-2
iron ferric +3 Fe+3
copper cupric +2 Cu+2
bromine bromide -1 Br-1
phosphorus phosphide -3 P-3
nitrogen nitride -3 N-3
helium -- 0 He
xenon -- 0 Xe
arsenic arsenous +3 As+3
silver silver +1 Ag+1
cobalt cobaltous +2 Co+2
barium barium +2 Ba+2
lead plumbous +2 Pb+2
iodine iodide -1 I-1
zinc zinc +2 Zn+2
mercury mercuric +2 Hg+2
nickel nickelous +2 Ni+2
argon -- 0 Ar
tin stannic +4 Sn+4
silicon silicon +4 Si+4
krypton -- 0 Kr
lithium lithium +1 Li+1
boron boron +3 B+3
beryllium beryllium +2 Be+2
Polyatomic ions
-- hydroxide -1 OH-1
-- sulfate -2 SO4-2
-- carbonate -2 CO3-2
-- nitrate -1 NO3-1
-- phosphate -3 PO4-3
-- chromate -2 CrO4-2
-- chlorate -1 ClO3-1
-- acetate -1 C2H3O2-1
-- ammonium +1 NH4+1