CAIE IGCSE Chemistry 8.3.4 Predict the Properties of Other Questions
Work through real CAIE IGCSE Chemistry questions to extrapolate halogen colour, state, reactivity and displacement from the Periodic Table.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- extrapolate Group VII physical properties to astatine and newly discovered elements
- predict physical state and colour from position down the group
- identify the least reactive Group VII element from periodic position
- use halogen trends to predict displacement ability of heavier or hypothetical elements
CAIE IGCSE Chemistry 8.3.4 Predict the Properties of Other Questions question 1
[Maximum number: 1]
Astatine is an element in Group VII of the Periodic Table. It has only ever been produced in very small amounts.
What are the likely properties of astatine?
colour
state
reaction with aqueous
potassium iodide
black
solid
no reaction
dark brown
gas
brown colour
green
solid
no reaction
yellow
liquid
brown colour
A
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