atoms-and-radioactivity
The structure of the atom has evolved as our knowledge of the subatomic particles has improved

What the Atomic Model Is

What Are Isotopes?

Nuclide Notation

Electrons and Their Orbits

How We Got to This Model
Radiation is all around us and its ionising and penetrating properties vary in strength

Background Radiation

Intro to Radioactivity

Ionisation Potential and Penetrating Power

Measuring Radiation
The activity of a radioactive substance is determined by its half-life
The activity of a radioactive substance is determined by its half-life
The properties of radiation can be utilised to save lives in medicine, industry and even household items.
Nuclear fission reactions are used to generate electricity in power stations

Nuclear Reactions as a Source of Energy

Fission of U-235

Nuclear Chain Reactions

Generation of Electricity

Advantages of Nuclear Power
Nuclear fission reactions are used to generate electricity in power stations