Atoms and radiation Flashcards
1
Q
What is the relative mass of an alpha particle?
A
4
2
Q
What is the most penetrating type of radiation?
A
Gamma
3
Q
Which form of decay doesn’t create a new element?
A
Gamma
4
Q
How many protons and nucleons are lost in alpha decay?
A
2 protons, 4 nucleons
5
Q
What do we call it when something is exposed to radiation on its outside?
A
Irradiation
6
Q
Radius of an atom
A
1 x 10^-10 metres
7
Q
Overall charge of an atom?
A
Neutral
8
Q
What does the nucleon number refer too?
A
Total number of protons and neutrons
