7 Types of radiation - particles
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What is an alpha particle made of?
2 protons and 2 neutrons (a helium nucleus)
What is a beta particle made of?
an electron emitted from the nucleus
What is a gamma ray?
an electromagnetic wave
Describe the process of beta minus decay
a neutron becomes a proton plus an electron which is emitted N –> E + P (nep)
Gamma radiation often occurs after another type of radiation. What is happening to the nucleus here?
The nucleus is rearranging
What is the isotope notation for alpha?
What is the isotope notation for beta?
What is the isotope notation for a neutron?
What is the difference between contamination and irradiation?
In contamination a source of radiation has been eaten or touched which will continue to emit radiation and cause more damage. In irradiation radiation has hit and been absorbed causing damage but no further damage will be caused.