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1.2 Atomic structure

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Question 16

Species Q has a mass number of 23 and contains 10 electrons.

The nucleus of Q contains one more neutron than it has protons.

Use the Periodic Table.

a.

Calculate the number of protons and the number of neutrons in species Q.

[2]
b.

Give the element in species Q and the overall charge on Q.

[2]
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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