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Edexcel A-Level Chemistry AS 2.3 What Is Meant By the Terms Atomic Proton Number and Mass Number Questions

Practise interpreting atomic number and mass number from isotope notation and linking them to element identity.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • read isotope notation to identify mass number, atomic number or element symbol
  • use atomic number and mass number to distinguish proton and nucleon counts

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