Notes - Section 6.7-6.9

Notes - Section 6.7-6.9 - Paul Jackman October 22, 2009...

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Paul Jackman October 22, 2009 Chemistry CHE 106 – M029 Section 6.7-6.9 Notes 6.7 Many- Electron Atoms To describe atoms with more than one electron, we must consider the nature of orbitals and their relative energies as well as how the electrons populate the available orbitals Orbitals and Their Energies We describe the electronic structure of a many-electron atom in terms of orbitals like those of the hydrogen atom. In a many-electron atom, for a given value of n, the energy of an orbital increases with increasing value of l Orbitals with the same energy are said to be degenerate Electron Spin and the Pauli Exclusion Principle Electrons have an intrinsic property, called electron spin, that causes each electron to behave as if it were a tiny sphere spinning on its own axis The spin magnetic quantum number is denoted with m s (two possible values +1/2 and -1/2 A spinning charge produces a magnetic field Pauli exclusion principle states that no two electrons in an atom can have the
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Notes - Section 6.7-6.9 - Paul Jackman October 22, 2009...

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