Chemical Bonding

Apuntes

Chemical Bonding Chapter 4 Overview Key concepts: Elements, Compounds, Mixtures, 3 types of bonding, 2 types of covalent structure Concepts Medium-High weightage 4.5% of past TYS papers Regularly tested in application (30%) questions Weightage Elements, Compounds, Mixtures Elements, Compounds, Mixtures 3 types of bonding Ionic Covalent Metallic Why are chemical bonds formed? atoms strive for stability, by achieving a stable electronic configuration - all shells are filled. Compounds/Atoms are most chemically stable when their valence electron shells are fully filled. Hence, atoms that do not have natural fully filled valence electron shells will combine with one another (form bonds) to achieve a fully filled valence electron shell, hence achieve stability. This is also why noble gases, who have natural fully filled valence electron shells, do not form bonds with others. Before we begin... What’s the point of bonding in the first place? (valence electron shells are the outermost shells) Ionic Bonding Ionic bonds are formed between metals and non-metals. T he transfer of electron from the metal to the non-metal would allow both atoms to have complete valence shells ...