CHM 2045C Module One Sample Exam
M-1 Part C: Element Classification 5 points
Using the periodic chart provided, in the blanks below write the classification of the elements listed:
1. 12C6 ______________ 4. 1H1 _________________
2. 39K19 ______________ 5. 4He2 _________________
3. 11B5 ______________
M-1 Part K: Vocabulary 5 points
In the blank below, write word(s) that best fit the description:
______________1. A pure stances that can not be broken down any further by a
______________2. A pure substance that can be broken down further by a chemical
______________3. The study of matter and the changes matter undergoes.
______________4. Two or more substances mixed together uniformly through out of
which a solution is an example.
______________5. Elements which properties in between the metals and nonmetals
and under one condition they act as metal, while under other
conditions may act as a nonmetal.
______________6. Smallest particle or unit of an element.
______________7. Smallest particle or unit of a compound.
______________8. Stored energy that matter possesses owing to its position or
______________9. A symbolic representation of a compound indicating the number of
atoms of each element.
______________10. The Energy associated with the mass and velocity of a particle or
the energy of motion of a particle.
Alternate Answer: Write a definition below of one word in the vocabulary list not referenced above and you may leave one of the words blank: