Chapter_7cd-Student

Chapter_7cd-Student - Chapter 7c Section 7.5 & 7.6 H =...

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Chapter 7c The wave mechanical view of the atom: Quantum Numbers & Orbital Shapes Ψ = Ψ E H
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Schrödinger’s model of the atom describes the electron as a standing wave: He chose to describe the energy of the electron. Thus position of the electron is uncertain . Ψ = Ψ E H     = = Ψ H a complex mathematical function of coordinates x , y , and z describing the electron as a wave. a complex mathematical operator like a cosine or a derivative
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Important Points of Schrödinger’s Theory
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Quantum Numbers Three numbers are required to describe the distribution of electrons in 3-D space. Ψ = fn( n , l , m l , m s )
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The Principal Quantum Number (n) Indicates the size of the orbital or distance from the nucleus Rule: must be a positive integer 1, 2, 3 corresponds to Bohr’s n values for a hydrogen atom the higher the value of n , the higher the energy level We call these energy levels Electron Shells
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The Angular Momentum Quantum Number ( l ) Tells us the shape of the orbital Rule: must be a integer from 0 to n-1 1, 2, … n-1
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Chapter_7cd-Student - Chapter 7c Section 7.5 & 7.6 H =...

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