CAIE IGCSE Chemistry 8.2.2 Predict the Properties of Other Questions
Work through real CAIE IGCSE Chemistry questions to interpret alkali metal data, flame colours and reactivity predictions.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- use physical-property data to identify a Group I element
- recall flame-test colours for sodium and potassium
- predict reactions of heavier Group I metals with water and oxygen
- use relative reactivity within Group I to identify an unknown element
CAIE IGCSE Chemistry 8.2.2 Predict the Properties of Other Questions question 1
Some information about properties of Group I elements is shown.
What are the values for X, Y and Z ?
X
Y
Z
63
252
0.26
63
39
0.26
39
63
1.53
63
39
1.53
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