GCSE Exam GCSE Chemistry
                    
                        4.2.1.1 Chemical bonds
                    
                                    
                
                    
                        4.2.1.2 Ionic bonding
                    
                                    
                
                    
                        4.2.1.3 Ionic compounds
                    
                                    
                
                    
                        4.2.1.4 Covalent bonding
                    
                                    
                
                    
                        4.2.1.5 Metallic bonding
                    
                                    
                