Ionic bonds are formed between a metal ... ion and a negatively charged non-metal ion. For example Magnesium (Mg) has the electron arrangement 2,8,2. To become stable it must lose its two outer ...

Calcium becomes a +2 ion and each chlorine becomes a -1 ion. The +2 calcium ion and the two -1 chloride ions attract each other and form an ionic bond and the compound calcium chloride. One calcium ...