EXERCISES, LESSON 2
INSTRUCTIONS: Answer the following exercises by writing the answer in the space
After you have completed all the exercises, turn to "Solutions to Exercises" at the
end of the lesson and check your answers.
Define the term "element" as used in radiation biology.
The nucleus of an atom contains protons, which have a _______________charge.
Electrons, which are __________________charged, revolve around the nucleus.
How are molecules formed?
Electromagnetic rays that are produced in the x-ray tube head when electrons
from the cathode filament strike the anode target are called _________________
The photons transfer their energy to the substance through which they pass
whether it be ________________, ___________________, or ______________
of the patient or the specialist.
What happens if a photon strikes the nucleus of an atom?