Structure of an Atom

Physics: Edexcel IGCSE, topic 7.1.2

Size of Atoms vs Nucleus

Atoms have a radius of radius of about 1 × 10-10 metres. However, the nucleus of atoms are even smaller.

Atoms

  • If an atom was the size of Wembley Stadium, then...

Nucleus

  • ...its nucleus would be the size of a garden pea!

Test yourself on Structure of an Atom

  • In what environment would the relative mass of an atom change?

  • Where is most of the mass of an atom found?

  • Which of the following has the largest mass?

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