Title:
Elements
Lab
Purpose:
- to observe and
describe the characteristics of representative elements
- to determine
the numbers of subatomic particles or representative elements
- to graph the
relationship of atomic number and mass number
Materials:
- set of 30 elements
- periodic chart
- element information
source
Procedure:
- construct a data chart with the following
headings
- element name
- element symbol
- atomic number
- atomic mass
- mass number
- number of
protons
- number of
electrons
- number of
neutrons
- description
- hazards or
toxicity information
- other information
- graph the relation of atomic number
and mass number (atomic number is the independent variable)
- draw a line of best fit
- determine the slope of the line (the
line should go through (0,0)
Results:
- graph of atomic
number vs atomic mass
- slope calculation....
- please put
calculation and result in a data chart with a box around it so
it can be easily found!
- remember
units for the slope!
Discussion:
- Briefly summarize
what you did
- Describe the
relation of atomic number and mass number (what does the slope mean?)
Conclusion:
- (A one sentence
testable statement that follows from your results, what you did, what
you observed)
- Two conclusions:
- one about
the most frequent observation about the physical characteristics
- one about
the relation of atomic number and mass
Reflection:
- (A personal
statement about the activity, whether it relates to "real life," whether
you liked it, suggested improvements.....)
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