P6.1.2 - Alpha, beta, gamma Flashcards
1
Q
What does radioactive mean?
A
A material containing unstable nuclei that emit radiation
2
Q
What is an alpha particle?
A
the nucleus of a helium atom
3
Q
What is a beta particle?
A
A fast-moving electron
4
Q
What is gamma?
A
An electromagnetic wave
5
Q
What is a neutron?
A
A particle in the nucleus
6
Q
How do you detect radiation>
A
With a device that ‘clicks’ when radiation enters in called a Geiger Counter
7
Q
What has the most penetrating power between alpha, beta and gamma?
A
Gamma
8
Q
What has the least penetrating power between alpha, beta and gamma?
A
Alpha
9
Q
What is ionising radiation?
A
Particles or waves that can completely remove an electron from an atom
10
Q
What has the most ionising power between alpha, beta and gamma?
A
Alpha
11
Q
What has the least ionising power between alpha, beta and gamma?
A
Gamma
