CAIE IGCSE Chemistry Group I Trends and Reactions
Practise applying Group I trends in softness, density, melting point and reactivity and predicting observations and products for reactions with water.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- describe Group I metals as soft, low-density conductors with relatively low melting points
- state that reactivity generally increases and melting point decreases down the group
- predict more vigorous water reactions down the group while retaining hydroxide and hydrogen products
Covered syllabus points
8.2 Group I properties question 1
Some elements are shown in the order they appear in the reactivity series. The most reactive element is at the top.
> sodium calcium magnesium aluminium zinc iron hydrogen copper
Answer the questions using the list of elements. Each element may be used once, more than once or not at all.
Identify:
a metal which is stored under oil
8.2 Group I properties question 2
Iron is a transition element. Potassium is a Group I element.
Chemical properties of some Group I elements are shown in the table.
Add to the table:
- the flame test colours for sodium and potassium
- the predicted reactions of rubidium with water and with oxygen.
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