Atoms and Nuclear Physics Flashcards
(5 cards)
1
Q
What can cause changes in distance from electrons to the nucleus?
A
Absorption or emission of electromagnetic radiation.
2
Q
What is radioactive decay?
A
Random process where nucleus gives out radiation, losing mass becoming more stable.
3
Q
What is the fourth type of nuclear radiation?
A
A neutron ejected by nucleus.
4
Q
What is meant by irradiated?
A
When a material has been exposed to ionising radiation but does not release ionising radiation itself.
5
Q
What is meant by radioactive contamination?
A
When a material contains an unwanted radioactive source emitting ionising radiation.
