ENGR2000_atomicstructure

ENGR2000_atomicstructure - Introduction to Engineering...

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Introduction to Engineering Materials ENGR2000 Chapter 2: Atomic Structure and Inter-atomic Bonding Dr. Priya Thamburaj Goeser
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The structure of a material - arrangement of its internal components Subatomic structure Atomic structure Microscopic structure Large groups of atoms aggregated together Macroscopic structure Elements that may be viewed with the naked eye
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2.2 Fundamental Concepts Atoms Nucleus Protons Neutrons Electrons Atomic number Atomic weight
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2.3 Electrons in Atoms - Atomic Models Simplified Bohr atomic model Electrons are assumed to revolve around the atomic nucleus in discrete orbitals
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2.3 Electrons in Atoms - Atomic Models Simplified Bohr atomic model Energies of electrons are quantized electrons are permitted to have only specific values of energy
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2.3 Electrons in Atoms - Atomic Models Wave-mechanical model Position is considered to be the probability of an electron’s being at various locations around the nucleus. Electrons exhibit wave-like and particle-like behavior.
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2.3 Electrons in Atoms - Atomic Models
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2.3 Electrons in Atoms - Quantum Numbers Every electron in an atom is characterized by 4 parameters called quantum numbers Principal quantum number (shell)
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This note was uploaded on 10/24/2009 for the course ENGR 2000 taught by Professor Goeser during the Fall '08 term at Armstrong State University.

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ENGR2000_atomicstructure - Introduction to Engineering...

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