How does ionic radius and charge affect ionic bonding? What is polarisation and polarising power? How do electron density maps provide evidence for ions? All this and more covered in this comprehensive lesson with questions and answers! This is a Year 12 A level lesson for Edexcel International Unit 1 – WCH11, but it can also be used for all UK exam boards. All the slides in this lesson are fully animated and include answers to every mini plenary question and exam question. The breakdown of the slides (which are best opened on Microsoft PowerPoint) is as follows:
Slide 1 - Title and 5-minute starter. The starter is a grid of four questions entitled ‘last week, last lesson, today’s learning and future learning’. Use this generic slide for all of your lessons by simply changing the questions and the answers each time.
Slide 2 - Lesson objectives (see thumbnail image)
Slide 3 – GCSE recap questions on ionic bonding. Answers animate onto the screen when you click
Slide 4 – Image of a sodium chloride crystal
Slide 5 – Definition of giant ionic lattice
Slides 6 - 8 : a space filling model of a giant ionic lattice (print outs are one on 7 – 8)
Slide 9 - learning pit-stop to check students’ learning. A series of questions of increasing difficulty, with the stretch and challenge (S+C) being the hardest. Answers animate onto the screen when you click
Slide 10 – 11: Recap of drawing dot-and-cross diagrams for ionic compounds
Slides 12 – 17: Strength of ionic bonds is explored and how ionic charge and size affects it
Slides 18 – 20: Polarisation of ions, including polarising power and factors that affect polarisation of anions
Slides 21 – 22: Isoelectronic ions
Slide 23 – why does ionic radius decrease as the number of protons increases?
Slides 24 – 26: evidence for the existence of ions, including physical properties of ionic compounds, electrolysis and electron density maps
Slide 27 – Applied learning time (ALT) A chance for students to embed learning with some independent practice. Answers animate as you click
Slides 28 – 32: Exam questions with mark scheme answers (included with the purchase of this resource)
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