Radioactivity
Most atoms are stable. Some atoms are unstable. These unstable atoms will decay until they are stable. When they decay they give out radiation. Atoms that give out radiation are called radioactive or radioisotopes. Once they are stable they will stop decaying and no longer be radioactive.
Radioactive Decay is a random process. You predict how many decays there will be in a given time but you cannot predict which atom will decay next.
The activity of a radioactive source can be measured using a Geiger-Muller tube. Its units are counts/second or Bequerels,Bq
Find out more in the following sections.
Radioactive Decay is a random process. You predict how many decays there will be in a given time but you cannot predict which atom will decay next.
The activity of a radioactive source can be measured using a Geiger-Muller tube. Its units are counts/second or Bequerels,Bq
Find out more in the following sections.
