Periodic Table
Overview/Rationale
In this unit students will learn about the organization of the periodic table and how it can use be used as a model to predict physical and chemical properties of elements based on their location on the table. Students will categorize elements into the basic categories of metals, non-metals, and metalloids, and analyze why the molecular structure determines the properties of these categories.
Student Objectives
● Explain how the modern periodic table is organized.
● Compare and contrast the properties of metals, nonmetals and metalloids.
● Predict and justify the trends in atomic properties based on the location on the periodic table.
● Describe the significance of the octet rule.
● Model Lewis structures of valence electrons for different elements.
Vocabulary
Periodic table, metal, nonmetal, metalloid, alkali metals, alkaline earth metals, halogens, noble gases, transition metals, periodic trends, atomic radius, ions, ionization energy, electro negativity, reactivity, valence electrons, Lewis structure .
Department Activities:
1. Mendeleev’s Periodic Table Lab- Students construct a periodic table using clues about elements to understand how the periodic table was developed: https://drive.google.com/open?id=0B0XImXxS1gxJWWtpMXBudGM4d1U
2. Periodic Trends POGIL- Students are introduced to the various properties and trends of the period table. Can be divided into sections: https://drive.google.com/open?id=0B0XImXxS1gxJbXg4VVdvSXF6S0E
3. Classifying Elements Lab- Students classify elements based on observing and testing the properties of specimens. https://drive.google.com/open?id=0B0XImXxS1gxJU0tPOEdpSTZaQkE
Identifying Metals Lab- Based on element properties and measurements, students identify unknown metals https://drive.google.com/open?id=0B0XImXxS1gxJWE9hVUdqZjlpVDA
4. Predicting the Properties of Elements- Students discover the trends of elements on the periodic table. Students identify trends using a graphical analysis and analyze why group and period trends exist. https://drive.google.com/open?id=0BzX0zxQ8dB0tWGtIQXpuWjNsZWs
5. Lewis structure activity