Zusammenfassung der Ressource
Ionising
radiation pt 2
- You need to be able to balance nuclear equations
- You can right alpha and beta
radioactive decay as nuclear equations.
- Watch out for the atomic number -
they have to balance up on both sides.
- For example Uranium-238 decays to
for Thorium-234 by emitting a alpha
particle and a gamma ray here's how:
- Alpha and beta particles are defected
by electric and magnetic fields.
- Alpha particles have a positive charge,
beta particles have a negative charge.
- When travelling through an electric or magnetic
field, both alpha and beta particles will be deflected.
- They are deflected in opposite directions
because of their opposite charges.
- Alpha particles have a larger charge than beta particles,
and feel a greater force in magnetic and electric fields.
- However they are deflected less
because they have a greater mass.
- Gamma radiation is an electromagnetic
(EM) wave and has no charge, so it doesn't
get deflected by electric or magnetic fields.