Orbitals
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d Orbitals

  1. Compare the data you collected and the formula you derived for pre-activity 1 and 2. Discuss among your group and come up with formulas that you all agree upon. Write down the results of your discussion showing you understand what is doing on.


  2. Analysis for nd orbitals as a function of principal quantum number. Click on each orbital (e.g. “3d”, “4d” etc) to activate the 3-D interactive orbital viewer and the radial distribution plot on the right panel. Examine the radial distribution plot for the number of radial nodes, and also the radius that encloses 90% electron density (r90%). Examine the interactive orbital viewer for the number of angular nodes/nodal plane. Sum the number of radial and angular nodes to get the total number of nodes for a certain orbital

    3. Orbital
    r90% (Bohr)
    		 # Radial Nodes # Angular Nodes Total # Radial &
    Angular Nodes


  3. Formulate a model for the number of radial, angular and total nodal surfaces for the nd orbitals:

    1. # of radial node =

    2. # of angular node =

    3. # of total node =


  4. Formulate a UNIFIED model for the number of radial, angular and total nodal surfaces for
    any orbital as a function of its quantum numbers n, l and ml:

    1. # of radial node =

    2. # of angular node =

    3. # of total node =

  5. How does the model depend on the magnetic quantum number ml?




Jmol will appear here.

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