Cambridge AS & A Level Chemistry
1.4Ionisation energy
Ionisation energy in Cambridge AS & A Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic22 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 1.4.1Define and use first ionisation energy.
- 1.4.2Write equations for first, second and successive ionisation energies.
- 1.4.3Identify and explain ionisation energy trends across a period and down a group.
- 1.4.4Identify and explain the variation in successive ionisation energies of an element.
- 1.4.5Relate ionisation energy to the attraction between the nucleus and the outer electron.
- 1.4.6Explain the factors affecting ionisation energy: nuclear charge, radius, shielding and spin-pair repulsion.
- 1.4.7Deduce electron configurations from successive ionisation energies.
- 1.4.8Deduce the position of an element in the Periodic Table from successive ionisation energies.
Lessons
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Ionisation energies and what they reveal
35 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Ionisation energy into a strength.
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