alpha beta gamma Flashcards
1
Q
how ionising is alpha
A
stong
2
Q
what absorbs alpha
A
thin paper
human skin
3
Q
what is alphas range in air
A
5cm
4
Q
where is alpha deflected
A
towards the negative plate
5
Q
how ionising is beta
A
less strong
6
Q
what absorbs beta
A
5mm of aluminium
7
Q
what is betas range in air
A
1m
8
Q
where is beta reflected
A
towards the positive plate
9
Q
how ionising is gamma
A
weak
10
Q
what absorbs gamma
A
several cm of lead
several m of concrete
11
Q
what is gammas range in air
A
unlimited
12
Q
where is gamma deflected
A
no deflection
13
Q
what do type of nucleus do alpha particles have
A
a helium nucleus
14
Q
what does an alpha particle consist of
A
2 protons and 2 neutrons
15
Q
what is a beta particle
A
an electron
