CHEM 0N01 Chapter Notes - Chapter 3: Atomic Orbital, Atomic Number, Atomic Radius
24 May 2016
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The electron that distinguishes an element from the previous element (with respect to atomic number) must enter the lowest energy atomic orbital available: fill from lowest to highest energy. Electrons must be distributed among orbitals of equal energy such that as many e- remain unpaired. *in order of n (energy levels):[ar] 3d6 4s2: br 35e, complete, condensed: *in order of n (energy levels):[ar] 3d10 4s2 4p5. Electrons has both wave + particle properties (wave/particle duality) Location of electrons described by schrodinger"s equation (solution to this equation define a volume in space (orbital) there is a 90% probability of locating an electron) The address of an electron can be described using quantum numbers. Quantum numbers: principle quantum number (n): n=1 to . Indicates the energy level (shell) of an atomic orbital. *max # of e- is an energy level = 2n2: n = 1, n = 2, n = 3, n = 4.
