Cambridge IGCSE Chemistry practice

Paper 3 structured question: Atomic structure and the Periodic Table

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

At a glance

Paper

Marks

Topic

Atomic structure and the Periodic Table

Exam-style question

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Paper 3Theory (Core)1 marks

Understanding atomic structure is essential in chemistry.

Description

The mass number of an atom is the total number of protons and neutrons in its nucleus.

a
State the definition of mass number.
Your answer
Aim for approximately 1 distinct marking point.
[1]

0 of 1 part answered

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Paper 3Theory (Core)2 marks

Description

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in mass number.

a
Define isotope and provide an example.
Your answer
Aim for approximately 2 distinct marking points.
[2]