The Periodic Table and Some Atomic Properties

Periodic Law and the Periodic Table 9-2 Metals and Nonmetals and Their Ions 

9-4 Ionization Energy 9-5 Electron Affinity 9-6 Magnetic Properties 9-7 Polarizability 

The periodic table unifies so much of what is known about the elements, in terms of their physical and chemical properties, that we continue to use it even though there are aspects of it we don t yet fully understand. Our understanding of the rationale underlying the periodic table took a great leap forward about 50 years after the table was created, in large part because of the insights provided by quantum mechanics. 

The basis of the periodic table is the electron coiifigurations of the elements, a topic we studied in Chapter 8. In this chapter, we will use the table as a backdrop for a discussion of some properties of elements, including atomic radii, ionization energies, electron affinities, and polarizabilities. These atomic properties also arise in the discussion of chemical bonding in the following two chapters, and the periodic table itself will be our indispensable guide throughout much of the remainder of the text. 

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ChapterlO The Periodic Table and Some Atomic Properties... 

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