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2.1 Atomic structure

2.1 Atomic structure

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Question 59

Naturally occurring gallium exists as a mixture of two stable isotopes, gallium-69 and gallium-71.

Explain the meaning of the term isotopes by referring to the subatomic particles found in these two gallium atoms.

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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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