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
chemical reaction.
__ compound __
2. A pure substance that can be broken down
further by a chemical
reaction.
_ 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
composition.
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: