Electron Configurations in excited states

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Discussion Overview

The discussion revolves around identifying electron configurations that correspond to excited states of atoms. Participants are tasked with determining the ground-state configurations and discussing the implications of the configurations provided.

Discussion Character

  • Homework-related
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant expresses uncertainty about how to identify excited states and mentions a possible confusion with a different configuration.
  • Another participant suggests returning the last electron to the previous orbital to find the ground state and counting electrons to identify the element.
  • A different participant argues that the ground state must include all sub-orbitals of "p" and provides a detailed breakdown of the electron configuration for a specific element.
  • Another participant emphasizes the use of the Aufbau principle to determine the ground state configuration and suggests comparing it to identify if the configuration is excited.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the identification of excited states, with differing views on how to approach the problem and varying interpretations of the configurations provided.

Contextual Notes

Some participants reference the Aufbau principle and the need to account for all sub-orbitals, indicating potential limitations in understanding how to apply these concepts to the configurations in question.

Who May Find This Useful

Students studying atomic structure, electron configurations, or those preparing for chemistry-related examinations may find this discussion relevant.

viper2308
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Homework Statement


Which of the following electron configurations correspond to an excited state? Identify the atoms and write the ground-state electron configuration where appropriate.

1s2 2s2 2p4 3s1
[Ar]4s2 3d5 4p1


Homework Equations


none


The Attempt at a Solution


I have no idea what to do. I was able to get 1s2 2s2 3p1 is boron but that is only because I thought it said 1s2 2s2 2p1
 
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put the last electron back into the previous orbital, - this will give you the ground state. count the total number of electrons, check the periodic table and this will give you the element
 
well, none of those..

==ground state includes the sub-orbitals of "p", which are: Px,Py,Pz (Well, x,y,and z are supposed to be subscripts and p is in lowercase.)

==it should be:
z=26(right?!)
[Ar] 4s2 3d5 4p1 = 1s2 2s2 2p6 3s2 3p6 4s2 3d5 4p1
==1s2 2s2 2p6 3s2 3p6 4s2 3d5 4px1 4py 4pz

==excited state is more elaborate...

==there...that's it dude..
==well, i suppose you know what's the correct answer,,,
==you've posted a trivia..
==well,,tc:)
 
Count the electrons - that will give you total number of electrons and you will know what element you see.

Write - using Aufbau principle - ground state configuration.

Compare - if it is different, you are excited :smile:
 

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