The periodic table of the elements contains many trends. During this lab, you will locate data on the Internet and prepare a data table and graph in order to explain some of these trends.
- Use the Internet to locate data for the atomic radius for elements 1-56.
- Using graphing software, prepare a data table of the atomic radius and atomic number.
- Your graph (atomic radius on y axis and atomic number on x axis) should have all of the data points connected with a line.
- Repeat steps 1-3 for the ionization energy and electronegativity instead of atomic radius.
- Copy your graph into an image manipulation program (such as Microsoft Paint).
- Draw distinct vertical lines at the end of each period.
- Select 2 different colours, which will be used to trace the trends in groups 2 and 16.
- Create a key (eg, group 2 = red, group 16=blue). Connect the points of each member of the group/family in the assigned color.
- Repeat with the other colour, for the other group.
- State the consistent pattern you see in the graph when looking at the groups. What trend do you notice in atomic radius, ionization energy and electronegativity?
- State the consistent pattern you see in the graph when looking at the periods. What trend do you notice in atomic radius, ionization energy and electronegativity?
3 graphs (with analysis annotations)
analysis questions 10 and 11