Chapter+2

# Chapter+2 - Chapter 2 Atomic structure Lei Li Click to edit...

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Click to edit Master subtitle style 2/17/10 Chapter 2 Atomic structure Lei Li

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2/17/10 2-1-1 the periodic table Alkali metal Alkaline earth metal Group or Family perio d
2/17/10 2-1-2 Discovery of E = RH(1/22 – 1/nh2) RH, Rydberg constant for hydrogen = 1.097 × 107 m-1 = 2.179 × 10-18 J

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2/17/10 E = RH(1/nl2 – 1/nh2)
2/17/10 When n = 1, the radius of the orbital is called Bohr radius (a0), it equals 5.2917720859(36) × 10−11 m, or 0.53 Å

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2/17/10 Emission spectrum of Iron Bohr’s theory can only be applied to hydrogen atom
2/17/10 de broglie wavelength equation λ is wavelength h is Planck's constant m is the mass of a particle moving at a velocity v de Broglie suggested that particles can exhibit properties of waves.

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2/17/10 The Heisenberg’s uncertainty principle Δ X • Δ px ≥ h / 4π Δ X : uncertainty in the position of the electron Δ px : uncertainty in the momentum of the electron
2/17/10 2-2 The Schrodinger equation It describes the wave properties of the electron in terms of position, mass, total energy and potential energy H = the Hamiltonian operator E = energy of the electron Ψ = the wave function

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2/17/10 Properties of Ψ Every Ψ matches a atomic orbital Ψ describes the wave properties of a given electron in a particular orbital
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