LAB 4B:
Provided by Jim Moore, Tippecanoe High School
Periodic Trends
NAME:
DATE:
SCORE:
PARTNER(S):
PER:
BACKGROUND:
In 1870, Dmitri Mendeleev first proposed a new way of studying and organizing the then known
63 elements.
The modern form of the table has been modified and improved many times since
Mendeleev’s tables.
Pioneers like Moseley (1913) and Seaborg (1941) have made the properties of
the elements much simpler to study and understand.
In this activity, you are going to discover some of the trends of the properties that exist on the
modern periodic table.
To do this, you are going to graph these properties.
OBJECTIVES:
The student will be able to…
•
define some of the properties of the element
•
graph the properties of the elements (use Z = 1 through Z = 36 only)
•
determine the general trends found on the periodic table
PROCEDURE:
1.On your calculator or in
Excel
, graph the trend of
density
.
The graph should have the atomic number
on the xaxis and density on the yaxis.
Answer the questions about this graph and what
conclusions you would draw.
See the back of your textbook for density values.
2.On your calculator or in
Excel
, graph the trend of
Melting Point
and
Boiling Point
.
The graph
should have the atomic number on the xaxis and temperature (MP & BP) on the yaxis.
Place both
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 Winter '08
 SDFSDF
 Ionization Energy, Periodic Table, Atomic Radius

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