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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Atomic structure and the Periodic Table

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Atomic structure and the Periodic Table

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Paper 3Theory (Core)1 marks

The periodic table provides insights into the properties of elements based on their electron configuration.

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Properties of Elements

Elements in the same group share similar chemical properties due to their electron configurations. Noble gases are unreactive due to their full outer shells.

  1. a

    State the group number for elements with 5 outer shell electrons.

    Aim for approximately 1 distinct marking point.

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Paper 3 structured question: Atomic structure and the Periodic Table

Paper 3Theory (Core)1 marks

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Electron Configuration in the Periodic Table

The periodic table is organized into groups and periods. Noble gases are in Group VIII, while Groups I to VII have varying numbers of outer shell electrons. The period number indicates the number of occupied electron shells.

  1. a

    State the number of outer shell electrons in Group III elements.

    Aim for approximately 1 distinct marking point.

    [1]