Atoms And Radiation Flashcards
Isotopes are radioactive.
True or false?
True. They decay into other elements and give out radiation
What are isotopes?
Atoms with the same number of protons but different number of neutrons
What is radioactivity?
Radioactive substances give out radiation from the nucleus. The decaying of the nucleus is completely random
Is the process affected by physical conditions such as temperature or chemical bonding?
No
What are the three different types of radiation?
Alpha, beta or gamma
What is background radiation?
Radiation that is present at all times
What are examples of where background radiation comes from?
Air Food Building materials Rocks Cosmic rays (the sun) Nuclear weapons Nuclear accidents Nuclear waste
Alpha radiation.
Particle or wave?
Particle
Beta radiation.
Particle or wave?
Particle
Gamma radiation.
Particle or wave?
Wave
Which is the biggest?
Alpha, beta or gamma
Alpha
Which are most dangerous OUTSIDE the body?
Alpha, beta or gamma?
Beta and gamma
Which is most dangerous INSIDE the body?
Alpha, beta or gamma?
Alpha
What stops alpha radiation?
Paper
What stops beta radiation?
Aluminium
