Unit Award Scheme
122533 CHEMICAL BONDING
In successfully completing this unit, the Learner will have | Evidence needed | |
|---|---|---|
demonstrated the ability to | ||
| 1 | describe the three main types of bonds in terms of electrostatic forces and the transfer or sharing of electrons, ie ionic bonds, covalent bonds, metallic bonds | Summary sheet and/or student completed work |
| 2 | describe how the ions produced by elements in certain groups have the electronic structure of a noble gas and explain how the charge of an ion relates to its group number | Summary sheet and/or student completed work |
| 3 | describe the structure of ionic compounds, including the electrostatic forces of attraction, and represent ionic compounds using dot and cross diagrams | Summary sheet and/or student completed work |
| 4 | describe the main limitations of using dot and cross, ball and stick and two and three-dimensional diagrams to represent a giant ionic structure | Summary sheet and/or student completed work |
| 5 | work out the empirical formula of an ionic compound from a given model or diagram that shows the ions in the structure | Summary sheet and/or student completed work |
| 6 | describe covalent bonds and identify at least two different types of covalently bonded substances, eg small molecules, large molecules, substances with giant covalent structures | Summary sheet and/or student completed work |
| 7 | use diagrams to represent the covalent bonds between small molecules, repeating units of polymers and parts of giant covalent structures | Summary sheet and/or student completed work |
| 8 | draw dot and cross diagrams for the molecules of hydrogen, chlorine, oxygen, nitrogen, hydrogen chloride, water, ammonia and methane | Summary sheet and/or student completed work |
| 9 | deduce the molecular formula of a substance from a given model or diagram | Summary sheet and/or student completed work |
| 10 | describe the arrangement of atoms and electrons in metallic bonds and draw at least two diagrams to represent the bonding in metals. | Summary sheet and/or student completed work |
All outcomes recorded on an AQA Summary Sheet
Approved 19 November 2024Level - Level One