Unit 1:  Atoms and Ions

Activity 3:  It All Adds Up (SI GLE:  3; PS GLE:  3)

CC:  In this activity the students will use the periodic table and a set of "element/ion cards" to create formulas for ionic compounds with a net ionic charge of zero.

Student will use internet and websites listed below to view periodic table.  Student will

search for ions and ionic compounds for the first twenty elements.

Knowing that the compounds must have a net charge of zero, have students use the element/ion cards to predict the correct empirical formula for the following compounds:

1.      sodium and chlorine

2.      calcium and oxygen

3.      magnesium and fluorine

4.      aluminum and bromine

5.      aluminum and oxygen

Chemical Elements.com

http://www.chemicalelements.com/

WebElements^TM Periodic table

http://www.webelements.com/

ChemiCool Periodic Table

http://www.chemicool.com/

Periodic Table of the Elements

http://periodic.lanl.gov/

CHEM4KIDS.COM

http://www.chem4kids.com/files/atom_ions.html

AUS-e-TUT - Naming Ionic Compounds Tutorial

http://www.ausetute.com.au/namiform.html

Nomenclature of Simple Compounds-Formulas to Names

http://science.widener.edu/svb/tutorial/namingcsn7.html