Radioactivity Flashcards
1
Q
Why does the nuclei give out radiation as it changes ?
A
To become more stable
2
Q
What is activity ?
A
The rate at which a source of unstable nuclei decays
3
Q
What is activity measured in ?
A
Becquerel (Bq)
4
Q
What is used to record the number of decays each second ?
A
Geiger-Muller tube
5
Q
Beta does not cause the mass of the nucleus to change but it does … ?
A
Cause the charge of the nucleus to increase
6
Q
What does the Emission of a gamma ray not cause ?
A
The mass or charge of the nucleus to change
7
Q
What is irradiation ?
A
The process of exposing an object to nuclear radiation
