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1.2 Atomic structure

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Question 23

Groundwater from a limestone area contains dissolved metal ions. Each of these ions carries a charge of 2+2+2+, contains 18 electrons and has a mass number of 44.

How many neutrons does each ion contain?

[1]
A

26

B

28

C

20

D

24

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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