Learning Objectives

Upon completion of this experiment, students will:

• • • (CLO1). Explain basic chemical concepts related to chemical changes, energy, and properties of matter. 

    • (CLO2). Apply the methods of scientific inquiry

    • (CLO3).  Analyze evidence to decide if generalizations or conclusions based on the obtained data are warranted

    • (MLO2-8) Graph and Predict properties  of effective nuclear charge, ionic or covalent radius, ionization energy, electron affinity and electronegativity using the periodic table.

• • http://www.webelements.com/

    • use this site to find the first and all other ionization potential.  Click on an element and then find the drop down menu of other properties.  Click on electron shell data, the ionization potentials are listed about midway down the page.   If you continue to move down this page, you can also find the effective nuclear charge values for table 4-2.

    • This site can also be used to find the number of isotopes of each element.  Click on the element, then in the drop down menu, click on Isotopes and NMR.  

  • http://environmentalchemistry.com/yogi/periodic

    • Use this site to find the electronegativity, atomic size and density of the each element.  The list of properties is toward the bottom of the page.  

  • Interactive Periodic Table by the American Chemical Society

  • http://www.chemicool.com/ 

  • other web addresses may be provided by your instructor.

If "Periodic Table" was searched in Google or a similar search engine, the result would be over 1 million hits.  There are many good sites that can be used to complete this assignment.

Extended Periodic Table

    http://jeries.rihani.com/index3.html 

    http://en.wikipedia.org/wiki/Extended_periodic_table 

Click on Elements for an extended list of Periodic Tables

    http://www.iun.edu/~cpanhd/periodictable.html

Create the required graphs utilizing Activity 4 to produce proper graphs of the required data.  

Procedure and Report

Part B:   Relative solubility of the Alkaline Earth compounds. 

The alkaline earth metals are in the second column of the periodic table, IIA or 2 Family.  The periodic properties of relative solubility for barium, calcium, magnesium and strontium will be determined. 

Note changes in appearance, color, amount of precipitate (solid formed), size of particles formed and settling tendencies to determine which element is more soluble .