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Which of the following is/are true in regards to centripetal force? It is also referred to as the “center-seeking force”. It describes the electrostatic force of attraction between the positively charged nucleus and the negatively charged electron that keeps the electron in its orbit. It is the tendency of a rotating body to move away from the center of rotation.

In a neutral atom, electrical neutrality is achieved by maintaining a balance between the:

How much radioactivity would be left after 9 hours for a sample of 13C if the half-life of this radioisotope is 3 hours?

An element with 2 electrons in its valence shell has a valence number of ____.

Convert 1 Sv into the corresponding traditional unit:

Choose the two (2) types of particulate radiation.

What is the maximum number of electrons the “O” shell can hold in an atom (providing it is not the valence shell)?

Which of the following types of radiation carries one unit of negative electrical charge?

Which of the following radiation units relates the risk from irradiating a part of the body to the risk of total body irradiation?

In following basic principles of radiation protection, the radiographer should do all of the following except: