Lecture_11_Periodic_Table

Lecture_11_Periodic_Table - L E C T U R E N O T E S LECTURE...

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Unformatted text preview: L E C T U R E N O T E S LECTURE 11 Periodicity GENERAL CHEMISTRY Fall 2008 Updated: 11/22/2011 Periodic Trends (Periodicity) Atomic Radii A. Atomic Radius 1. One half the distance between nuclei of identical atoms that are bonded together B. Trends 1. Atomic radius tends to decrease across a period due to increasing positive nuclear charge 2. Atomic radii tend to increase down a group due to increasing number energy levels (outer electrons are farther from the nucleus) Trends in Ionization Energy A. Ion 1. An atom or a group of atoms that has a positive or negative charge B. Ionization 1. Any process resulting in the formation of an ion C. Ionization Energy 1. The energy required to remove one electron from a neutral atom of an element, measured in kilojoules/mole (kJ/mol) A + energy A + e...
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Lecture_11_Periodic_Table - L E C T U R E N O T E S LECTURE...

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