Share Nuclear Physics
Save to Folder
What are the three main types of radiation?
Alpha, Beta, Gamma
Which type of radiation is a helium nucleus?
Alpha
What is the charge of a beta particle?
Negative
What is the mass number of a gamma ray?
0
Which type of radiation is the most penetrating?
Gamma radiation
Which radiation is stopped by paper?
Alpha
Which radiation is stopped by a few mm of aluminium?
Beta
What happens to the atomic number during alpha decay?
It decreases by 2
What is meant by "ionising radiation"?
Radiation that can remove electrons from atoms
What instrument is used to detect radiation?
Geiger-Müller tube (or GM tube)
True or False: Gamma radiation has no mass.
True
Which radiation travels at the speed of light?
Gamma
What is the unit of radioactive activity?
Becquerel (Bq)
What does "half-life" mean?
Time taken for half the radioactive nuclei to decay
Which radiation changes a neutron into a proton?
Beta
What is the nucleus of a hydrogen atom called?
Proton
