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1.2 Atomic structure

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Question 28

A particle has a mass number of 56, 24 electrons and an overall charge of 2+2+2+. It loses one electron.

a.

How many protons, neutrons and electrons does the particle now have, and what is its overall charge?

[4]
b.

Explain why the mass number of the particle does not change.

[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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