CHEM 1151 Chapter Notes - Chapter 2: Magnetic Quantum Number, Uncertainty Principle, Pauli Exclusion Principle
18 Oct 2017
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Quantum number size of orbital integer 1 shape of orbital. 0 n-1 magnetic quantum number orientation of orbital in space integer values between l and -l spin quantum number angular momentum of the electron. This type of atomic orbital s p d f. Atomic orbitals in shell total number of electrons. 4 s s, p s, p, d s, p, d, f. Electron configurations aufbau principle: electrons must be placed into lower energy orbitals before populating higher energy levels. Hand"s rule: place electrons one at a time into each of the available orbitals before. Hydrogen atomic # is 1 so one proton and one electron electron goes in lowest energy orbital 1s. 1s1 shell number placed in front followed by orbital"s angular momentum description, # of electrons in orbital expressed as superscripted number to right of the orbital angular momentum label.
