Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

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Unit 4: Organizing Atoms and Electrons—The Periodic Table


Hosted by Mala Radhakrishnan

Mala Radhakrishnan

For centuries, chemists tried different methods to organize elements around patterns of chemical and physical trends, or regularities, eventually leading to the modern periodic table. Electron configuration is a powerful predictive tool, a simple extension from the periodic table. Physical characteristics, including atomic radius and reactivity, all depend on electron configuration and can be teased from a careful understanding of the periodic table. A living document, the periodic table is continually updated as new manmade heavy elements are discovered in research laboratories.

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