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

                                     chemical reaction.

______________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: