Types of radiation Flashcards
1
Q
What are the 4 types of radiation?
A
- Alpha
- Beta ( - )
- Beta ( + )
- Gamma
2
Q
What are alpha particles blocked by?
A
Paper
3
Q
What are beta particles blocked by?
A
Aluminium
4
Q
What are gamma particles blocked by?
A
Lead
5
Q
When an atom is unstable what will it throw out?
A
Alpha particle
6
Q
How many protons and neutrons does an alpha particle have?
A
2 protons
2 neutrons
7
Q
What is the alpha symbol?
A
α
8
Q
What is the mass of alpha particle?
A
4
9
Q
What is the charge of an alpha particle?
A
+2
10
Q
How ionising is an alpha particle?
A
VERY
11
Q
When is alpha article dangerous?
A
When consumed
12
Q
In an electric field, it will be what?
A
Negative
13
Q
Where is alpha commonly used?
A
Smoke alarms
14
Q
What is the beta symbol?
A
β
15
Q
What does the structure of a beta symbol consist of?
A
An electron
