AC LEC 02-09

AC LEC 02-09 - Lecture 2 Atomic Structure and the Periodic...

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Lecture 2 - Atomic Structure and the Periodic Table of the Elements Periodic Table Columns and Rows Structure of the Atom Electron Configuration Metals and Nonmetals Valence Electrons Cations and Anions Electronegativity Atomic and Ionic sizes
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THE PERIODIC TABLE PERIODS ROWS GROUPS COLUMNS
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GROUPS P E R I O D S
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Atomic Number and Atomic Mass Pb 82 207.2 Atomic Number is number of PROTONS in the nucleus Atomic Mass is the mass in grams of 6.023x10 23 atoms of the element Avogadro’s Number Period: 6 Group: 14
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The Bohr Hydrogen Atom In the Bohr hydrogen atom, an electron revolves in a circular orbit of 0.05 nm radius around a central proton.
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Electron Orbital Model for the Hydrogen Atom Electron charge cloud surrounding the nucleus of a hydrogen atom in the ground state. The outer circle (r=0.05nm) indicates the highest probability for finding an electron. Bohr’s Equation: E = (2
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This note was uploaded on 02/27/2009 for the course MSE 150 taught by Professor Wittig during the Spring '07 term at Vanderbilt.

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AC LEC 02-09 - Lecture 2 Atomic Structure and the Periodic...

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