CHEM 122 Mid-term Exam I - Practice Exam. - Part A: Answer...

Part A: Answer all the Questions
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the
question.
1) What portion of the volume of each atom or ion on the face of a unit cell is actually within the unit cell?
A) 3/4 B) 1/2 C) 1/4 D) all of it E) none of it
2) A metal crystallizes in a face centered cubic structure and has a density of 11.9 g/cm
3
. If the radius of the
metal atom is 138 pm, what is the identity of the metal?
3)
Identify the type of solid for diamond.
4) The phrase ʺ like dissolves like ʺ refers to the fact that ________.