Studied by 6 people
alpha - type of particle
helium nucleus
alpha - relative mass
4
alpha - relative charge
+2
alpha - ionising ability
strong
alpha - penetrating power
weak
alpha - range in air
5-8cm
alpha - absorbed by…
a few mm of paper
beta - type of particle
a fast moving electron
beta - relative mass
1/2000
beta - relative charge
-1
beta - ionising ability
medium
beta - penetrating power
medium
beta - range in air
500-1000cm
beta - absorbed by…
a few mm of aluminium
gamma - type of particle
electromagnetic wave
gamma - relative mass
0
gamma - relative charge
no charge
gamma - ionising ability
weak
gamma - penetrating power
strong
gamma - range in air
infinite
gamma - absorbed by…
several cm of lead, a few m of concrete
Note 
Flashcard (132)