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What is the trend in ionisation across a period and down a group? First ionisation energy definition? Data analysis for successive ionisation energies? 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 – Definitions of first and second ionisation energies
Slide 4 – GIF demonstrating first ionisation energy and why the process is endothermic
Slides 5 – 9: successive ionisation energies and using data to deduce the electronic configuration
Slides 10 – 13: graph of log ionisation against number of electrons removed. Concept of jumps and mini-jumps in successive ionisation energies can be explained using this
Slides 14 – 16: Energy of electrons and how this affects ionisation energy is explained here
Slide 17 – 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
Slides 18 – 22: students will consider hydrogen and helium, followed by lithium and helium, and which of the pair has the higher first ionisation energy. This gently eases students into the concept of trends in ionisation energy down groups and across periods.
Slides 23 – 30: two word fill activities with word banks to test students’ understanding of trends in ionisation energy down groups and across periods. Note: Exceptions to the rules (i.e. nitrogen and phosphorus) will be introduced in the periodicity lesson
Slides 31 – 36: Exam questions with mark scheme answers (included with the purchase of this resource)

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