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Radiographic Physics
Johnston, 1st Ed.: Chapter 3
Question | Answer |
---|---|
What is the smallest particle of an element that retains the characteristics of the element? | Atom. |
X-rays travel as bundles of energy called __________. | Photons. |
What constitutes atomic mass? | # of protons + # of neutrons in the nucleus. |
The law stating that the outer shell of an atom can contain no more than 8 electrons is the _____________ ________. | Octet rule. |
Electromagnetic radiation is both ________ and ___________. | Magnetic; electrical. |
Electromagnetic radiation can be either of wave quality or particle quality, depending on energy level. This is called _____ ______ ______. | Wave-particle duality. |
Electromagnetic radiation travels in bundles of energy called ________________. | Photons. |
At what speed do x-rays travel? | The speed of light or 186,000 mph |
Waves of radiation are called ___________ waves. | Sine. |
Wavelength is defined as the _______ to _______ of the wave. | Peak; peak. |
Frequency is defined as the number of ________ passing a point per unit time. | Waves. |
The speed of x-rays is based on the fact that they are a form of _______________ radiation. | Electromagnetic. |
Wavelength and frequency are _________ proportional to each other. | Inversely. |
The inverse square law relates the intensity of (light/x-rays) to __________________. | Distance. |
Alpha and beta particles are similar to x-rays and gamma rays in that they have the ability to __________matter. | Ionize. |
The rate at which a radioactive substance decays is called the _____ ______. | Half life. |
The removal of an electron from an atom is known as: | Ionization. |
The atom and the electron that was removed from it are called an ______ ______. | Ion pair. |
Gamma rays originate from the ________. | Nucleus. |
X-rays originate from interactions between ______and _____. | Electrons and atoms. |
An example of an element with unstable nuclei is considered _______________. | Radioactive. |
A radioactive element would be an ____________. | Isotope. |
The difference between an electron and a beta particle is their ___________. | Origin. |
When compared with a beta particle, the alpha particle is much _________. | Larger. |