physics
what is an alpha
2 protons 2 neutrons
what is beta
electron
what is gamma
electromagnetic waves
charge of alpha
+2
charge of beta
-1
charge of gamma
-1
range in air of alpha
few cm
range in air of beta
10s of cm
range in air of gamma
infinite
penetration of alpha
stopped by paper
penetration of beta
stopped by mm of aluminium
penetration of gamma
reduced by lead
ionisation of alpha
high
ionisation of beta
medium
ionisation of gamma
low