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CHEM1101 - Resources for Week 3


Topics and Learning Outcomes

  • Shape of Atomic Orbitals and Quantum Numbers
    •  identify the key features of waves in 1-3 dimensions - displacement, amplitude, nodes
    •  recall that s orbitals have n – 1 spherical nodes
    •  recall that the spatial extent of the electron increases with energy
    •  identify the principal quantum number
    •  recall the Born interpretation of the electron wave
    •  explain the meaning of the orbital quantum numbers, n, l, m, and the designation of orbitals such as 1s, 3d, 4p, 4f
    •  recognise the representations of waves as cross-sectional graphs, contour plots and lobes
    •  recognise the shapes of atomic orbitals in these representations
    •  deduce the number of nodal planes and spheres for an s, p or d orbital
    •  draw a lobe representation of an s or p orbital

Textbook and eBook References

  • Shape of Atomic Orbitals and Quantum Numbers - Sections 4.3 and 4.4
  • Filling Energy Levels in Atoms Larger than Hydrogen - Sections 4.5 and 4.6
the eBook references are free and are taken from high quality sources.

Lecture Notes, Tutorial Worksheets & Answers and Suggested Exam Questions

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ChemCAL and iChem Resources

Contributed Links and Resources

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Shape of Atomic Orbitals and Quantum Numbers -  
  Gallery of atomic and molecular orbitals  
 
Tags: atomic orbitals  |  Contributed by Adam Bridgeman
 
  Atomic orbitals  
 
Description: Introduction to what atomic orbitals are
Tags: atomic orbitals  |  Contributed by Adam Bridgeman
 
  Atomic orbitals (rotatable animations)  
 
Tags: atomic orbitals  |  Contributed by Adam Bridgeman
 
  Introduction to atomic orbitals  
 
Description: Khan Academy video
Tags: atomic orbitals  |  Contributed by Adam Bridgeman
 
Filling Energy Levels in Atoms Larger than Hydrogen -  
  Atomic orbital order game  
 
Description: Drag the orbitals into the correct energy order
Tags: atomic orbitals  |  Contributed by Adam Bridgeman
 
  Electronic configurations  
 
Description: Khan Academy video
Tags: atomic orbitals | atomic configurations  |  Contributed by Adam Bridgeman
 
  Electron Shell Pattern @6:35  
 
Description: A pretty neat table shown at 6:35 to always get the order of the electron shells right. It helped me because I didn't have to worry about remembering that the D-orbitals are 1 minus and F-orbitals are 2 minus the period number. A really small thing to remember but our lecturer said that "Some people _will_ forget this!" and in that same worksheet in the lecture I indeed forgot that rule. The video is at a lot lower level than required for this course, but it's a kind of nice very basic summary of some concepts and I found myself filling in reasons for what he was saying with what we learned in class!
Tags: pattern | energy levels | orbitals |  |  Contributed by AndyB
 

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