TASK DEFINITION: Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
PROBLEM: Question: What do you call the electrons in the outermost energy level of an atom? Answer: valence electrons

SOLUTION: Electrons in the outermost energy level of an atom are called valence electrons. They determine many of the properties of an atom, including how reactive it is.

PROBLEM: Question: The motion of stars in galaxies imply that there is about 10 times as much what as in the luminous objects we can see? Answer: mass

SOLUTION: Figure 6.18 The diagram shows angular momentum for a circular motion.

PROBLEM: Question: The value that occurs most often in a data set is called the? Answer: mode

SOLUTION:
The mode is the most common value. It is the value that occurs most often.