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2.1 Atomic structure

2.1 Atomic structure

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Question 65

A standard atomic clock utilizes the hyperfine transitions of atoms of rubidium-87, which has a mass number of 87.

Calculate the number of neutrons in a single atom of rubidium-87.

Use the periodic table to help you.

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Markscheme

2.1 Atomic structure Questions

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

120 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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