Behind the Lines—The Magnificent Energy Level Structure of an Atom

  • Keith Robinson
Part of the Patrick Moore’s Practical Astronomy Series book series (PATRICKMOORE)


Out in the ‘wild’ a free electron can do what it wants and have any amount of energy that it wants. Within an atom though, things are very different; like a guy sent to jail, the electron faces a tough regime governed by set rules which restrict freedom of movement; though just as is sometimes the case with a prison, electrons can and do escape.


Energy Level Quantum Number Valence Electron Stable Orbit Principal Quantum Number 
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Copyright information

© Springer 2007

Authors and Affiliations

  • Keith Robinson
    • 1
  1. 1.Royal Astronomical Society, UKLancasterUK

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