Cambridge IGCSE Chemistry practice

Paper 4 structured question: Isotopes

Try the question first, then check the answer and practise the same topic again.

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Paper

Marks

Topic

Isotopes

Exam-style question

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Paper 4Theory (Extended)3 marks

Different isotopes can be used in various applications due to their properties.

Description

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

a
Explain why isotopes have the same chemical properties despite having different masses.
Your answer
Aim for approximately 3 distinct marking points.
[3]

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Paper 4Theory (Extended)1 marks

Description

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

a
State the reason isotopes of an element have the same chemical behavior.
Your answer
Aim for approximately 1 distinct marking point.
[1]