By the end of this unit, the students will be able to:

1 - Relate how the periodic Law can be used to predict the physical and chemical properties of the elements.

2 - Explain the relationship of an element's position on the periodic table to its atomic number. (3.1)

3 - Use the periodic table to identify metals, nonmetals, metalloids, families (groups), periods, and valence electrons. (3.1 & 3.2)

4 - Relate the position of an element on the periodic table to its electron configuration and compare its reactivity with other elements in the table. (3.3)

5 - Identify trends on the periodic table (ionization energy, electronegativity, and relative size of atoms and ions). (3.4)