1 Ionic bonds 3.1.3.1 Ionic bonding 3.1 explain what is meant by “ionic Ionic bonding involves electrostatic Recap of what is meant bonding” attraction between oppositely charged by an ionic bond and draw appropriate dot and cross use dot and cross ions in a lattice. The formulas of diagrams to show electronic diagrams of electronic compound ions e.g. sulfate, hydroxide, structures of ions in an ionic structures and nitrate, carbonate and ammonium. compound formulae to represent determine the formula of Students should be able to: predict the ionic compounds simple and complex ionic charge on a simple ion using the position compounds of the element in the Periodic Table; construct formulas for ionic compounds. 3.1.3.2 Nature of covalent and dative 2 Covalent Draw appropriate dot and cross covalent bonds diagrams to represent covalent A single covalent bond contains a shared Use appropriate bonds compound, including pair of electrons. conventions to display dative covalent bonds. the bonds in covalent use the idea of electronegativity Multiple bonds contain multiple pairs of compounds. Introduce 3.2 to explain why electron density electrons. the idea of bond in covalent bonds may not be polarity and dative A co-ordinate (dative covalent) bond symmetrical covalent/ co-ordinate Explain a molecule may contain contains a shared pair of electrons with bonds polar bonds, but the molecules both electrons supplied by one atom. itself may or may not be polar. Students should be able to represent: a 3 Metals covalent bond using a line; a co-ordinate identify whether elements or bond using an arrow. Recap on metallic compounds have bonding. Compare covalent or metallic bonding 3.1.3.3 Metallic bonding properties of explain the bonding and 3.3 Metallic bonding involves attraction substances which are structure of metals between delocalised electrons and bonded by ionic, use ideas about bonding to positive ions arranged in a lattice. covalent or metallic explain the properties of bonding. metals 4 Crystal structure 3.4 Bonding and physical properties make observations of the Describe different 3.4 growth of a range of different crystal structures. Carry crystals including silver, out a practical to grow
1 Ionic bonds Recap of what is meant by an ionic bond and use dot and cross diagrams of electronic structures and formulae to represent ionic compounds explain what is meant by “ionic bonding” draw appropriate dot and cross diagrams to show electronic structures of ions in an ionic compound determine the formula of simple and complex ionic compounds 3.1.3.1 Ionic bonding Ionic bonding involves electrostatic attraction between oppositely charged ions in a lattice. The formulas of compound ions e.g. sulfate, hydroxide, nitrate, carbonate and ammonium. Students should be able to: predict the charge on a simple ion using the position of the element in the Periodic Table; construct formulas for ionic compounds. 3.1 2 Covalent Use appropriate conventions to display the bonds in covalent compounds. Introduce the idea of bond polarity and dative covalent/ co-ordinate bonds Draw appropriate dot and cross diagrams to represent covalent bonds compound, including dative covalent bonds. use the idea of electronegativity to explain why electron density in covalent bonds may not be symmetrical Explain a molecule may contain polar bonds, but the molecules itself may or may not be polar. 3.1.3.2 Nature of covalent and dative covalent bonds A single covalent bond contains a shared pair of electrons. Multiple bonds contain multiple pairs of electrons. A co-ordinate (dative covalent) bond contains a shared pair of electrons with both electrons supplied by one atom. Students should be able to represent: a covalent bond using a line; a co-ordinate bond using an arrow. 3.1.3.3 Metallic bonding Metallic bonding involves attraction between delocalised electrons and positive ions arranged in a lattice. 3.2 3 Metals Recap on metallic bonding. Compare properties of substances which are bonded by ionic, covalent or metallic bonding. identify whether elements or compounds have covalent or metallic bonding explain the bonding and structure of metals use ideas about bonding to explain the properties of metals 3.3 4 Crystal structure Describe different crystal structures. Carry out a practical to grow make observations of the growth of a range of different crystals including silver, 3.4 Bonding and physical properties 3.4
Chemistry%20SoW%20Year%201.docx