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Cambridge IGCSE Chemistry practice

Paper 4 structured question: Isotopes

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Isotopes

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Paper 4Theory (Extended)1 marks

Isotopes are important in various fields, including medicine and archaeology.

Description

Isotopes in Medicine

Isotopes are used in medical imaging and treatment. For example, iodine-131 is used to treat thyroid conditions.

  1. a

    State the reason isotopes of an element have the same chemical behavior.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 4 structured question: Isotopes

Paper 4Theory (Extended)3 marks

Description

Applications of Isotopes

Isotopes can be used in medical diagnostics, radiometric dating, and tracing chemical pathways.

  1. a

    Explain why isotopes have the same chemical properties despite having different masses.

    Aim for approximately 3 distinct marking points.

    [3]