Ionisation Flashcards
1
Q
What is ionisation?
A
when an electrons are added or removed from an atom to form an ion.
2
Q
How can ionisation occur?
A
Need a lotta energy
AKA an external energy source like radiation
3
Q
What is ionising radiation?
A
Are radiation that has a lotta energy to wack electrons outta atoms like alpha, beta and gamma ray
4
Q
Why is ionisation dangerous?
A
Can wack electrons outta people’s tissue, DNA, tumours -> cancers
5
Q
How can you prevent ionisation?
A
Time, distance, shielding
6
Q
List the radiation from high ionising ability to lowest.
A
1) alpha 2) beta 3) gamma
7
Q
List the radiation from high penetrating power to lowest.
A
1) gamma, 2) beta 3) alpha
