P7 Atoms And Radiation Flashcards
1
Q
What is radiation
A
Releasing energy in the form of moving weight
2
Q
What are the 3 types of radiation
A
Gamma, alpha and beta
3
Q
What can backround radiation occur from?
A
-the environment (rocks)
-from space
-devices like x rays
4
Q
All matter is made from…
A
Atoms
5
Q
The Nucleas contains
A
Protons and neutrons
6
Q
Alpha decays by ?
A
-4 on top,-2 on bottom
7
Q
Beta decays by
A
0 on top, -1 on bottom
8
Q
What is Count rate
A
The number of decays recorded each second by a detector
9
Q
What is half life?
A
The half life is the time it takes for the activity of a sample to half.
