ioner og salte..

a)
           Lithiumchlorid                       Li⁺                Cl^-                          lithium-ion         og            chlorid-ion
b)
           Kaliumiodid                           K⁺                  I^-                           kalium-ion         og            iodid-ion
c)
           Magnesiumoxid                     Mg²⁺            O^2-                         magnium-ion     og            oxid-ion
d)
           Calciumbromid                     Ca²⁺            Br^-                           calcium-ion        og            bromid-ion

e)
           Natriumsulfid                         Na⁺             S^2-                           natrium-ion        og            sulfid-ion

Hvorfor hedder Mg2+ - hvad modtager den? 

                     ₁₂Mg [Ne] 3s²    --->   ₁₂Mg [Ne]²⁺

                            Mg             --->         Mg²⁺

se