Edexcel Radioactivity | GCSE Physics Online

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Edexcel Radioactivity

In this section we look inside the atom and the subatomic world. This is where things start to get really strange!

Choose your topic:

Atoms [FREE] - Never trust an atom - they make up everything!

Nuclear Radiation - Unstable isotopes emit particles from their nucleus

Nuclear Equations - These show what happens when alpha, beta and gamma are emitted

Half-life - The time it takes for the number of nuclei in a sample to halve

Hazards of Radiation - There are a few dangers....

Uses of Radiation - Radioactive sources are incredibly useful for many applications

Background Radiation - You can't escape it, you are currently being irradiated

Medical Uses of Radioactivity - Radioactivity, although hazardous, has many benefits

PET Scanners - Positron Emission Tomography

Fission and Fusion - Releasing energy from splitting, or joining, nuclei

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