Types of radiation Flashcards
What are the 4 types of radiation?
- Alpha
- Beta ( - )
- Beta ( + )
- Gamma
What are alpha particles blocked by?
Paper
What are beta particles blocked by?
Aluminium
What are gamma particles blocked by?
Lead
When an atom is unstable what will it throw out?
Alpha particle
How many protons and neutrons does an alpha particle have?
2 protons
2 neutrons
What is the alpha symbol?
α
What is the mass of alpha particle?
4
What is the charge of an alpha particle?
+2
How ionising is an alpha particle?
VERY
When is alpha article dangerous?
When consumed
In an electric field, it will be what?
Negative
Where is alpha commonly used?
Smoke alarms
What is the beta symbol?
β
What does the structure of a beta symbol consist of?
An electron
What is the mass of a beta particle?
1/1836
What is the charge of a beta particle?
-1
How ionising is the beta particle?
Moderate
When is a beta particle dangerous?
Inside or outside the body
In an electric field, what is it?
Positive
When is beta particles commonly used?
When measuring aluminium
What is the gamma symbol?
δ
What is the structure of a gamma particle?
A light wave
What is the mass of a gamma particle?
0
What is the charge of a gamma particle?
0
How ionising is a gamma particle?
Weak
When is a gamma particle dangerous?
Inside ad outside the body
What are gamma particles usually used for?
Treating cancer
What is a gamma particle?
A burst of energy
