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1.2 Atomic structure

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Question 25

A neutral atom contains 12 protons, 12 neutrons and 12 electrons.

The atom forms a 2+2+2+ ion by losing two electrons.

A student says that losing two particles reduces the relative mass by 2.

Explain why the reduction in relative mass is much less than 2.

[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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