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Edexcel IGCSE Chemistry 2.6 Predicting Halogen Properties Questions

Practise using Group 7 trends to predict colours, states, reactivity and simple molecular formulae for less familiar halogens.

Syllabus
First assessment 2019
Course
Chemistry 4CH1

Exam points

  • predict astatine as a solid with a dark grey or black colour from the halogen trend
  • apply decreasing reactivity down Group 7 to rank chlorine, bromine, iodine and astatine
  • use diatomic halogen molecules to give formulae

Edexcel IGCSE Chemistry 2.6 Predicting Halogen Properties Questions question 1

[Maximum number: 2]

This question is about elements in Group 7 and their compounds.
The table gives information about some of these elements.

Table for Question Edexcel IGCSE Chemistry 2.6 Predicting Halogen Properties Questions question 1 — Edexcel IGCSE Chemistry

Question (a)

(a)

Predict the colour of fluorine at room temperature.

[ 1 ]

Question (b)

(b)

The element astatine is below iodine in Group 7.

Predict the formula of a molecule of astatine.

[ 1 ]
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