Cambridge IGCSE Chemistry practice

Paper 3 structured question: Group I properties

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Paper

Marks

Topic

Group I properties

Exam-style question

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Paper 3Theory (Core)1 marks

Group I elements exhibit specific trends in their properties.

Description

As you move down Group I, the reactivity and atomic size of the elements increase while the melting points decrease.

a
State the trend in reactivity of Group I elements as you move down the group.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)3 marks

Description

Alkali metals are known for their low density, high reactivity, and formation of alkaline hydroxides.

a
Discuss the trend in melting points of Group I elements as you move down the group.
Your answer
Aim for approximately 3 distinct marking points.
[3]