Properties of Alpha, Beta and Gamma Radiation Flashcards
1
Q
how far can alpha particles travel through air
A
5cm before they collide with air
2
Q
how far can beta particles travel through air
A
15cm
3
Q
how far can gamma particles travel through air
A
several meters
4
Q
what needs to be used to stop alpha particles form moving
A
single sheet of paper
5
Q
what needs to be used to stop gamma particles form moving
A
several cm of lead
5
Q
what needs to be used to stop beta particles form moving
A
few milimeters of aluminium
6
Q
what does ionizing power mean
A
When radiation collides with atoms, that can cause the atoms to lose electrons and form ions.
7
Q
how stong is alpha particles at ionising
A
very strong ionising
8
Q
how stong is beta particles at ionising
A
quite strongly ionising
9
Q
how strong is gamma particles at ionizing
A
weakly ionizing
