Radiation Flashcards
1
Q
What is Alpha ?
A
Alpha ( a )
- Helium nucleus
Alpha is negative -
Least dangerous, absorbed by paper
2
Q
What is Beta?
A
Beta is a electron
Beta is positive +
Absorbed by Aluminium
3
Q
What is Gamma?
A
Gamma short waves lengths rays
Gamma is neutral isn’t + or -
Absorbed by lead
4
Q
Are we always exposed to radiation?
A
Yes we are always exposed to small amount of radiation.
5
Q
Where is radiation?
A
Rocks Medical treatment Air travel Food Drink Nucleus weapons Cosmetics
6
Q
What is half - life?
A
When a radioactive substances decay, they do so in a particular pattern.
Time takes half nuclei - decay gives substance it’s half life
7
Q
Can people have more exposure to radiation?
A
Yes
Radiographer
Station worker
Have a higher dose of radiation.
