Angular momentum for third electron of Lithium

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Discussion Overview

The discussion centers on the calculation of angular momentum and energy for the third electron of a Lithium atom, specifically within the context of the Bohr model. Participants explore the applicability of the equations used in this scenario.

Discussion Character

  • Homework-related, Technical explanation, Debate/contested

Main Points Raised

  • One participant presents equations for energy and angular momentum, suggesting values based on the Bohr model for the third electron in Lithium.
  • Another participant argues that the equations provided are only valid for the Li2+ ion, indicating that the Bohr model applies solely to single-electron systems.
  • A further reply questions the applicability of the original participant's answer to the Lithium atom, suggesting that it may only be correct for the Lithium ion with appropriate substitutions.
  • There is a suggestion that the original poster is studying the Bohr model, which implies a focus on foundational concepts in atomic physics.

Areas of Agreement / Disagreement

Participants express disagreement regarding the applicability of the equations to Lithium versus Lithium ion, indicating that multiple competing views remain on the validity of the calculations presented.

Contextual Notes

Limitations include the assumption that the Bohr model can be applied to multi-electron systems, which is contested in the discussion. The specific conditions under which the equations are valid are not fully resolved.

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Homework Statement


For the third electron of Lithium atom moving in its permissible orbit, the values of angular momentum and the energy are?


Homework Equations


E= -2π2e4mZ2/n2h2
Third electron is in the second orbit


The Attempt at a Solution


The value for energy should be -9∏2e4m/2h2
Correct me if i am wrong for the above answer,
Angular momentum= nh/2∏
So its value should h/∏

Am i right?
 
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These equations are only applicable for Li2+ ion, as Bohr Model are only applicable for Single electron species.
 
So, what do you think, my answer is right?
AGNuke said:
These equations are only applicable for Li2+ ion, as Bohr Model are only applicable for Single electron species.
 
Can't say about Li "atom". Talk about Li "ion". Then your answer may be right, simple substitution.

Well, owing to the fact you asked multiple questions, I guess you are studying Bohr Model.
 

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