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1.2 Atomic structure

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Question 19

An atom-building computer program uses the letters P, Q and R for the three types of subatomic particle in an atom.

  • P has a relative mass of approximately 0.0005.
  • Q has a relative charge of 0.
  • R has a relative charge of +1.

Name the particle represented by each letter.

P ........................................

Q ........................................

R ........................................

[3]
Markscheme

1.2 Atomic structure Questions

  1. GCSE
  2. /Chemistry
  3. /1.2 Atomic structure

101 exam-style questions on OCR GCSE Chemistry 1.2 Atomic structure, covering 1.2.1 Development of the atomic model, 1.2.2 The nuclear model and the size of atoms, and 1.2.3 Subatomic particles in atoms and ions. Each one has a worked solution and a mark scheme showing where the marks go.

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