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1.2 Atomic structure

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Question 9

Analysis of an ion shows that it contains 8 protons, 8 neutrons and 10 electrons.

Which symbol represents this ion?

[1]
A

816O2−{}^{16}_{8}\mathrm{O^{2-}}816​O2−

B

816O2+{}^{16}_{8}\mathrm{O^{2+}}816​O2+

C

818O2−{}^{18}_{8}\mathrm{O^{2-}}818​O2−

D

818O2+{}^{18}_{8}\mathrm{O^{2+}}818​O2+

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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