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1.2 Atomic structure

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Question 12

Data for three particles are given in the table.

ParticleAtomic numberMass numberNumber of protonsNumber of neutronsNumber of electrons
aluminium atom, Al\mathrm{Al}Al1327?14?
sodium ion, Na+\mathrm{Na^{+}}Na+112311?10
fluoride ion, F−\mathrm{F^{-}}F−919910?

Complete the table.

[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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