It can be spelled either way, I use the British spelling but 'ionizing' is equally as acceptable. The resulting positively charged atom is called an ion , which explains why high energy radiation is called ionizing radiation. So, the calculations I've done below are as far as I know NOT required for pre-university examinations , but I hope you might find them, and my resulting comments, interesting. A kilogram of coffee or granite might have Bq of activity, and an adult human Bq. When atoms decay, they emit three types of radiation, alpha, beta and gamma. Medical and dental X-rays discern hidden problems.
Nuclear radiation, what you need to know.
Industrial and research workers may need to wear a full protective suit to prevent any, even microscopic, radioactive particles to come into contact with the skin or inhaled into the lungs. Three most common modes of nuclear decay. That is because in all other types of changes we have talked about only the electrons were changing. Beta and alpha radiation are radioactive particles normally associated with radioactive dust from fallout. That same large size of alpha particles, however, makes them less able to penetrate matter.
Cyberphysics - Ionizing Power and Penetrating Power
The atomic number assigned to an electron is negative one -1 , because that allows a nuclear equation containing an electron to balance atomic numbers. A beta particle is simply a high energy electron that is emitted from the nucleus. Substantial cover and distance from the explosion can prevent thermal injuries. You can remove large particles of dirt and debris from the top of the poncho by beating it off from the inside at frequent intervals. Nuclear reactions produce a great deal more energy than chemical reactions.
The energy of emitted particles from radioactive decay are usually quoted in megaelectronvolts MeV. In fact, you won't find a pure source: Beta Decay Another common decay process is beta particle emission, or beta decay. All copyrights reserved on revision notes, images, quizzes, worksheets etc. At the same time that the electron is being ejected from the nucleus, a neutron is becoming a proton. Extra note on the relative masses, velocities speeds and kinetic energies of alpha, beta and gamma radiations. These counters can only detect X-rays and gamma rays emitted from within the body.