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 _nonmetal__ 4. 1H1 _non metal (class by itself)_
2. 39K19 _Metal_____ 5. 4He2 __nonmetal (Nobel Gas)__
3. 11B5 _semimetal____ 6. 56Fe26 _Metal_____
M-1 Part K: Vocabulary (Corwin chap 1 & 4) or (Kotz 6e Chapter 1) 5 points
In the blank below, write word(s) that best fit the description:
__ element __ 1. A pure stances that can not be broken down any further by a
__ compound __ 2. A pure substance that can be broken down further by a chemical
_ chemistry ___ 3. The study of matter and the changes matter undergoes.
homogeneous mixture 4. Two or more substances mixed together uniformly through out of
which a solution is an example.
metaloids (semimetals) 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.
__ atom _____ 6. Smallest particle or unit of an element.
molecule (ion-formula unit) 7. Smallest particle or unit of a compound.
Potential energy_ 8. Stored energy that matter possesses owing to its position or
chemical formula 9. A symbolic representation of a compound indicating the number of
atoms of each element.
_ kinetic energy 10. The Energy associated with the mass and velocity of a particle or
the energy of motion of a particle.
CHM 2045C Kotz 6e Chapter 1 Vocabulary List: 45Chap1Vocabulary
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: