Radiation - P4 Flashcards
1
Q
What is radioactive decay?
A
An unstable nucleus can become more stable over time by randomly and unpredictably emitting ionising radiation. This process is called radioactive decay.
2
Q
What is a substance’s half-life?
A
The amount of time it takes for half of the substance to radioactively decay.
3
Q
What is contamination?
A
Radioactive contamination is when radioactive atoms or molecules get onto other materials.
4
Q
What is irradiation?
A
Irradiation is simply exposure to nuclear radiation.
