P2 Radioactivity and Stars

What is an atom made up of?

Numbers of particles in a neutral atom?

What is an ion?

What is the same for ALL atoms of an element?

What is atomic number?

What is mass number?

What is an isotope?

Origins of background radiation?

What can affect the radiation gives out by a radioactive substance?

What is an alpha particle?

What is a beta particle?

What is a gamma ray?

Nuclear equations? (H)

Properties of alpha

Properties of beta

Properties of gamma

Deflection of radiation by electric and magnetic fields

What is half-life?

The uses of and the dangers associated with alpha

The uses of and the dangers associated with beta

The uses of and the dangers associated with gamma

Name two nuclear fuels?

What is nuclear fission?

What does the fuel nucleus have to do before it can fissh?

What happens when a nucleus undergoes fission?

What is nuclear fusion?

How do stars form?

What is true for a 'main sequence' star

Can you describe the life cycle of a star?

Where do the elements come from?