12 Questions
Which type of radiation is characterized as being highly ionizing?
Alpha particles
What is the main method to stop beta particles?
Aluminum
What happens during gamma decay at the nuclear level?
Nucleus emits radiation without changing composition
What type of radiation is NOT affected by electric or magnetic fields?
Gamma rays
Which radioactive source is a natural origin of background radiation?
Radioactive rocks in the ground
How can ionizing radiation affect living cells?
Break chemical bonds and facilitate reactions
What is the main difference between isotopes and unstable nuclei?
Isotopes have different numbers of neutrons but the same number of protons, while unstable nuclei emit particles to become stable.
Why are nuclear radiations called ionizing radiations?
Because they cause atoms in surrounding materials to lose electrons and form ions.
What is the unit used to measure the amount of radioactivity given out by a substance?
Becquerels
How do unstable nuclei become more stable?
By releasing nuclear radiations in the form of alpha and beta particles or gamma rays.
What happens when a particle is released from the nucleus of an unstable atom?
The atom turns into an isotope of a different element.
How is radioactive decay different from chemical or biological decay?
Radioactive decay involves changes in the nuclei of atoms, while chemical or biological decay does not.
Test your knowledge on radioactive decay, isotopes, and radioactivity detection methods. Learn about unstable nuclei emitting particles to become stable, the concept of isotopes, and how radioactivity is measured in becquerels. Explore detection methods like using photographic film or Geiger-Muller tubes.
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