Electron centripetal acceleration

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Discussion Overview

The discussion revolves around the concept of electron centripetal acceleration and its implications for electromagnetic radiation as electrons revolve around a nucleus. Participants explore the relationship between classical physics and quantum mechanics in describing electron behavior.

Discussion Character

  • Debate/contested

Main Points Raised

  • Some participants assert that electrons have centripetal acceleration and question whether they radiate electromagnetic waves while revolving around the nucleus.
  • Others argue that electrons do not radiate while occupying an orbital, citing historical theoretical issues with this idea.
  • One participant claims that the electron has no centripetal acceleration and does not conform to classical physics laws.
  • A question is raised regarding the existence of angular momentum in electrons, with an acknowledgment that the reasons for this are not fully understood.

Areas of Agreement / Disagreement

Participants express differing views on whether electrons exhibit centripetal acceleration and radiation, with no consensus reached on these points. The discussion remains unresolved regarding the nature of electron behavior in relation to classical and quantum physics.

Contextual Notes

There are limitations in the discussion regarding the definitions of centripetal acceleration and angular momentum, as well as the dependence on classical versus quantum mechanical frameworks.

wasi-uz-zaman
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hi experts
electrons certainly have centripetal acceleration - and we learned that accelerated particles do emit EM waves - than does electron radiate while revolving around nucleus?
 
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wasi-uz-zaman said:
hi experts
electrons certainly have centripetal acceleration - and we learned that accelerated particles do emit EM waves - than does electron radiate while revolving around nucleus?

Welcome to PhysicsForums, wasi-uz-zaman!

Electrons do not behave in the manner you describe, and they do not radiate while occupying an orbital. The idea that they did was recognized long ago as leading to serious theoretical problems.
 
The electron has no centripetal acceleration. It obeys no law from classical physics.
 
OK then why electron have angular momentum
 
wasi-uz-zaman said:
OK then why electron have angular momentum

Scientists do not know yet.

As far as they know, "It just does."
 

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