Radiation Types Flashcards
Most isotopes are…
unstable
How to isotopes stable themselves?
emit radiation from the nucleus
What is an isotope?
An atom with the same number of protons but a different number of neutrons
Name the 3 types of radiation:
Alpha Radiation
Gamma Rays
Beta Particles
WHat is alpha radiation made from?
2 neutons and 2 protons
Alpha radiaton range in air
1-2cm
What will stop alpha particles?
thin piece of paper
ionising level of alpha radiation
high
What are beta particles made from?
high energy electrons
beta particles range in air
1-2m
What will stop beta particles?
3-5mm of aluminium
beta particles ionising level
medium
What is gamma radiation?
electro-magnetic wave
gamma radiation range in air
several km
WHat will stop gamma radiaton?
5-10cm of lead or concrete
Gamma radiation ionising level
low
WHat type of radiation is most dangerous in the body and why?
alpha radiation because it has the highest ionising level
What type of radiation is most dangerouse outside of the body and why?
gamma radiation because it can’t be stopped
