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Exam-style practice

Group I properties answer explanations

Review worked answers and explanations for Group I properties. Aligned to Cambridge IGCSE Combined Science.

Answer explanations

Question 1 of 4

Review the answer support, then move sideways through the set.

Paper 3 structured question: Group I properties

Paper 3Theory (Core)3 marks

Description

Properties of Alkali Metals

Lithium, sodium, and potassium are the first three alkali metals in Group I of the periodic table. They exhibit trends in their physical and chemical properties as you move down the group.

  1. a

    Describe the trends in melting point, density, and reactivity of alkali metals as you move down the group.

    [3]