1
Q
What can stop Alpha radiation?
A
A sheet of paper.
2
Q
What can stop Beta radiation?
A
A thin sheet of Aluminium.
3
Q
What can stop Gamma radiation?
A
A thick layer of lead.
4
Q
What happens during alpha decay?
A
An atom loses 2 neutrons and 2 protons which causes the mass to be decreased by 4.
