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2.1 Atomic structure

2.1 Atomic structure

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Question 45

A mass spectrometer analysis of element J\mathbf{J}J (atomic number 12) reveals the presence of two stable isotopes. One isotope has a mass number of 24, while the other has a mass number of 26.

Explain, in terms of subatomic particles, what is meant by the term isotopes.

[2]
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2.1 Atomic structure Questions

  1. GCSE
  2. /Chemistry
  3. /2.1 Atomic structure

87 exam-style questions on Edexcel GCSE Chemistry 2.1 Atomic structure, covering 2.1.1 Development of the atomic model, 2.1.2 Structure of the atom and subatomic particles, 2.1.3 Mass number, isotopes and relative atomic mass, and 2.1.4 Calculating relative atomic mass from isotopic abundance. Each one has a worked solution and a mark scheme showing where the marks go.

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