Which Molecules Exhibit Paramagnetism: Be2, B2, C2, or N2?

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Discussion Overview

The discussion revolves around identifying which of the molecules Be2, B2, C2, or N2 exhibit paramagnetism, with a focus on the implications of the statement regarding 2s-2p mixing not being operative. The context includes elements of molecular orbital theory and the concept of unpaired electrons.

Discussion Character

  • Homework-related
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • One participant expresses confusion about the meaning of "2s-2p mixing is not operative" and its relevance to paramagnetism.
  • Another participant suggests using molecular orbital theory to analyze the problem.
  • Some participants propose that the statement may imply that hybridization does not occur, linking it to VSEPR theory.
  • A later reply indicates a conclusion that C2 is the answer, but it is unclear if this is agreed upon by all participants.

Areas of Agreement / Disagreement

There appears to be no consensus on the implications of 2s-2p mixing or the identification of the paramagnetic species, as multiple interpretations and suggestions are presented.

Contextual Notes

The discussion includes assumptions about molecular orbital theory and hybridization that are not fully explored or resolved, particularly regarding the specific implications of 2s-2p mixing.

Raghav Gupta
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Homework Statement


Assuming 2s-2p mixing is not operative, the paramagnetic species among the following is
1. Be2
2. B2
3. C2
4. N2

Homework Equations


NA

The Attempt at a Solution


Not able to understand the statement "2s -2p mixing is not operative".
Can you help?
Paramagnetism is a specie having unpaired electron.
How to relate it here?
 
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You can try molecular orbital theory.
 
mooncrater said:
You can try molecular orbital theory.
What is that statement 2s and 2p is not operative meaning?
 
[What I think] 2s-2p mixing is not operative may mean that hybridization is not done (which is a vsepr concept).
 
mooncrater said:
[What I think] 2s-2p mixing is not operative may mean that hybridization is not done (which is a vsepr concept).
Got it, thanks the answer C2
 
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