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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Arrangement of elements

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Arrangement of elements

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Paper 4Theory (Extended)3 marks

The reactivity of elements varies across the periodic table.

Description

Reactivity Trends

As you move down the alkali metals group, reactivity increases. In contrast, reactivity decreases down the halogens group.

  1. a

    Explain why the reactivity of alkali metals increases down the group.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 4 structured question: Arrangement of elements

Paper 4Theory (Extended)2 marks

Description

Periodic Table Overview

The periodic table is arranged in rows and columns, where elements are grouped by similar properties. Groups are vertical columns, and periods are horizontal rows.

  1. a

    Describe the significance of grouping elements in the periodic table.

    Aim for approximately 2 distinct marking points.

    [2]