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2.3 Ionic bonding

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Question 28
H

A calcium ion formed from calcium-40 has 20 protons. Which numbers of neutrons and electrons does Ca2+\mathrm{Ca^{2+}}Ca2+ have?

[1]
A

18 neutrons and 20 electrons

B

20 neutrons and 18 electrons

C

20 neutrons and 22 electrons

D

40 neutrons and 18 electrons

Markscheme

2.3 Ionic bonding Questions

  1. GCSE
  2. /Chemistry
  3. /2.3 Ionic bonding

56 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.

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