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Edexcel A-Level Chemistry AS 3.9 The Polarising Power of a Cation Depends on Its Radius and Charge and the Polarisability of an Anion Also Depends on Its Questions

Practise comparing polarising power and polarisability from ion size and charge, then linking them to covalent character.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • identify the most polarising cation from small radius and high positive charge
  • explain anion polarisability by linking large radius or higher charge to electron-cloud distortion
  • predict greater covalent character from a strongly polarising cation and polarisable anion

Edexcel A-Level Chemistry AS 3.9 The Polarising Power of a Cation Depends on Its Radius and Charge and the Polarisability of an Anion Also Depends on Its Questions question 1

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Table for Question Edexcel A-Level Chemistry AS 3.9 The Polarising Power of a Cation Depends on Its Radius and Charge and the Polarisability of an Anion Also Depends on Its Questions question 1 — Edexcel A-Level Chemistry AS

Explain why the fluoride ion is difficult to polarise.

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