The property of permitting the passage of radiant energy is:

[Answer to ques. #1]  C
Explanation: A) Radiopaque is the property that allows an object to be seen on x-ray.
B) Radioactive means emitting radiant energy.
C) Correct.
D) Radioscopy is the process of viewing inner structures through x-rays.

[Answer to ques. #2]  A
Explanation: A) Correct.
B) A technologist views exam images.
C) A radiographer is a specialist in taking x-rays.
D) A physicist is one who specializes in nature, i.e., energy and mass.

[Answer to ques. #3]  B
Explanation: A) A radiograph is an x-ray image.
B) Correct.
C) Radiology is the study of the field of x-rays.
D) Radiopaque is a quality of an object that allows it to be seen on an x-ray.

[Answer to ques. #4]  A
Explanation: A) Correct.
B) A mammogram is a record of a breast x-ray.
C) Mastography is an incorrect term. Mammography is correct.
D) Mastogram is an incorrect term. Mammogram is correct.

[Answer to ques. #5]  C
Explanation: A) Fluoroscopy uses x-rays to create a moving image of organs.
B) Cineradiography uses fluoroscopy to make a video record of x-ray images.
C) Correct. Ultrasound can also be called echography.
D) Radiography is the process of taking x-rays.

I can't even begin to explain how much your help meant to me!

Happy to hear that, good luck with the rest of them