CHEM 1040 Chapter Notes - Chapter 8: Pauli Exclusion Principle, Principal Quantum Number, Electron Configuration

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16 Dec 2015
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8. 1 electron spin and the pauli exclusion principle. Electrons act as magnets and create magnetic fields. Electron spin is subject to a quantum restriction on the possible directions of the spin axis. The resulting directions of spin magnetism correspond to spin quantum numbers ms = Electron configuration: a particular distribution of electrons among the available: how we describe the electrons in an atom. A subshell consists of a group of orbitals having the same n and l quantum numbers but different ml values. Orbital diagram: a diagram to show how the orbitals of a subshell are occupied by subshells. 1s22s1 electrons: an orbital is represented by a circle, each group of orbitals in a subshell is labeled by its subshell notation, an electron in a orbital is shown by an arrow. Pauli exclusion principle: states that no two electrons in an atom can have the same four quantum numbers o.

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