Problem set 1 Crib 2011

Problem set 1 Crib 2011 - Problem Set#1 Crib A Red dotted...

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Problem Set #1: Crib A. Red dotted line = Nodal Plane White lobes = (+) charge, Shaded lobes = (-) charge B. Quantum numbers for valence electrons Arsenic atom n l m l m s 4s 4 0 0 +1/2 4 0 0 -1/2 4p 4 1 1 +1/2 4 1 0 +1/2 4 1 -1 +1/2 C. The mnemonic device shown below is useful for building up electronic configurations of atoms up to a certain atomic number. What is the last atom for which it is possible to derive the ground electronic configuration from orbitals/shells explicitly listed? Name all orbitals listed in the diagram that have zero amplitude at the nucleus (r = 0). 4f 4d 4p 4s 3d 3p 3s 2p 2s 1s The electron configuration is 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 z=36 so the atom is Kr D. The radial component of the 2pz wave function of the hydrogen atom appears below. R 21 (r) = 2 -1 6 -1/2 a 0 -5/2 r e -r/(2a0) a 0 = 52.8 pm At what value of r does the function 4πr 2 R 2 21 (r) have its maximum?
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E. Identify the atom (or ion) that has the indicated property or write the electronic
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Problem set 1 Crib 2011 - Problem Set#1 Crib A Red dotted...

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