S2.2 The covalent model (1)
This is the first of three pages to cover covalent bonding at SL/HL. This section looks at how covalent bonds are formed and covers single and multiple bonds and coordination bonding. It includes the "octet rule" and also Lewis formulas ("dot" and “cross” diagrams). It also covers the factors influencing bond strength, bond length and bond polarity. What determines the covalent nature and properties of a substance?...