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CAIE IGCSE Chemistry 2.4.3 Formation of Ionic Bonds Between Questions

Use electron transfer and charge balance to represent how Group I and Group VII elements form ionic compounds.

Syllabus
2026–2028
Course
Chemistry 0620

Exam points

  • Describe transfer of one electron from a Group I atom to a Group VII atom, producing a positive metal ion and a negative halide ion.
  • Select the electronic structures before and after Group I and Group VII atoms form ions, showing the loss and gain of the outer electron.
  • Construct dot-and-cross ions with the transferred electron distinguished and the correct charges, using the appropriate full outer shell for each ion.

CAIE IGCSE Chemistry 2.4.3 Formation of Ionic Bonds Between Questions question 1

[Maximum number: 1]

Chemical compounds formed from a Group I element and a Group VII element contain ionic bonds.

How are the ionic bonds formed?

A

Electrons are transferred from Group VII atoms to Group I atoms.

B

Electrons are shared between Group I atoms and Group VII atoms.

C

Electrons are lost by Group I atoms and Group VII atoms.

D

Electrons are transferred from Group I atoms to Group VII atoms.

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