Does an Electron in a Ground State S Orbital Cease to Orbit the Nucleus?

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Discussion Overview

The discussion centers on the behavior of an electron in a ground state s orbital, specifically addressing whether it ceases to "orbit" the nucleus due to having zero orbital angular momentum. Participants explore the implications of quantum mechanics on this concept, including classical analogies and the nature of electron behavior in quantum states.

Discussion Character

  • Conceptual clarification, Debate/contested, Technical explanation

Main Points Raised

  • One participant notes that the orbital angular momentum quantum number for an electron in a ground state s orbital is zero, suggesting that this implies the electron does not orbit the nucleus.
  • Another participant argues that classically, this situation corresponds to an electron falling through the nucleus, while in quantum mechanics, the orientation of the electron's position becomes indeterminate.
  • A further contribution emphasizes that not only is the line's orientation indeterminate, but all orientations are equally probable, highlighting the spherical symmetry of the s state wavefunctions.
  • Another participant states that an electron in a ground state s orbital has no orbital angular momentum and only possesses spin.

Areas of Agreement / Disagreement

Participants express differing views on the implications of zero orbital angular momentum for the electron's behavior. There is no consensus on whether this means the electron ceases to orbit the nucleus or how to interpret this in the context of quantum mechanics.

Contextual Notes

The discussion involves assumptions about classical versus quantum interpretations of electron behavior and the implications of quantum mechanics on the concept of orbiting. The nature of electron spin and its relationship to angular momentum is also a point of exploration.

apkrishna1963
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Orbital Angular momentum quantum number of an electron in its ground state - s - state is zero, l = 0. That means in S - state atom do not have orbital angular momentum. If it is not, then is electron stop orbiting round the nucleus? How to explain this aspect? Or wether we have to abndon the particle notion of electron ? Please make discussion.
 
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Well, classically this corresponds to an electron falling tru and fru the nucleus. In QM, the orientation of the line through the nucleus becomes indeterminate.
 
DrDu said:
Well, classically this corresponds to an electron falling tru and fru the nucleus. In QM, the orientation of the line through the nucleus becomes indeterminate.
Not only is the line's orientation indeterminate, but all orientations are equally probable. Hence the spherical symmetry of the S state wavefunctions.
 
an electron in a ground state S orbital has no orbital angular momentum
it only has spin
 

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