7 Types of Radiation - properties
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Define ionising
Turns something into an ion by knocking off electrons
Name the 3 types of ionising radiation
alpha, beta, gamma
Put alpha, beta and gamma in order from most ionising to least ionising
Most ionising: Alpha beta least ionising: Gamm
What does the penetration of a radiation mean?
how far it can travel through air / how easy it is to block
Put alpha, beta and gamma in order from most penetrating to least penetrating
Most penetrating: gamma beta Least penetrating: alpha
Why types of radiation can be blocked by lead?
All of them - alpha, beta and gamma (mostly)
What types of radiation will be blocked by a few cm of aluminium?
beta and alpha
What types of radiation are blocked by paper or skin?
alpha
How far can alpha radiation travel through the air?
a few cms
How far can beta travel through the air?
1 metre
How far can gamma travel through the air?
many kilometres