Search over 10,000 free study notes

Al³⁺ + 3e^- → Al 2O^2- → O₂ + 4e^-

Na is a group 1 metal and Cl is a group 7 non-metal so they form an ionic bond.

So for GCSE the key to this question is in the periodic table: Note drawing the atoms can be helpful to show the shells. 

F: 2,7

Cl: 2,8,7

Firstlet's look up Flurorine (symbol F in th...

Positive and negative ions attract one another and bind together forming a new substance. This is called ionic bonding. It is usually between a positive metal ion which i...

This question is about understanding how reactions happen, what it means for something to react and the factors controlling reactions. Here it is important to know that for a reaction to happen particles ...