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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 identifying strongly polarising cations, explaining anion electron-cloud distortion and predicting covalent character from ion size and charge using Edexcel IAL Chemistry evidence.

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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