How do atoms with low energy orbitals posses high energy electrons?

Click For Summary

Discussion Overview

The discussion revolves around the energy dynamics of electrons ejected from high energy orbitals, specifically comparing cesium and nitrogen atoms. Participants explore how an electron from a high energy 6s orbital in cesium can be accepted by a nitrogen atom with a lower energy 2p orbital, questioning the energy transfer and calculations involved in this process.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant notes that when cesium ejects an electron from the 6s orbital, it is assumed that the ejected electron retains high energy, questioning how this energy changes when accepted by nitrogen.
  • Another participant explains that the ejection of an electron requires energy, and the energy of the ejected electron is the energy of the photon minus the ionization energy, suggesting it could be a fraction of an eV.
  • A follow-up comment reiterates the idea that while energy is expended to eject the electron, the energy from being in the 6s orbital is also a factor, raising the question of how nitrogen can hold this high energy electron.
  • One participant clarifies that the energy of an electron in an orbital is negative compared to that of a free electron, indicating that an outer electron of cesium is high energy only relative to inner electrons of cesium, not necessarily compared to outer electrons of nitrogen.
  • Another participant challenges the assumption that the transfer of the electron from cesium to nitrogen can be treated as a reaction with zero enthalpy change, prompting further consideration of the ionization energies of cesium and potassium.

Areas of Agreement / Disagreement

Participants express differing views on the energy characteristics of electrons ejected from cesium and their ability to be accepted by nitrogen. There is no consensus on how the energy dynamics work in this context, and multiple competing perspectives remain.

Contextual Notes

Participants reference the ionization energies of cesium and nitrogen, but the discussion does not resolve how these energies quantitatively affect the transfer of electrons between the two atoms. The assumptions regarding enthalpy change in the electron transfer process are also not fully explored.

MathewsMD
Messages
430
Reaction score
7
In the case of an atom of Cesium ejecting an electron, it would lose one electron from the 6s orbital. The 6s orbital is very high in energy and similarly so would the electron that is ejected from it, right?

So if there was a Nitrogen atom as well, how would it be possible that the Nitrogen accepts this electron of such high energy when its highest ground state sublevel is 2p. I would assume the electron loses energy in the transfer process but how exactly? The electron affinity in terms of enthalpy change for Nitrogen is positive, so I would assume energy is put in, but how can the energy change from a 6s orbital to 2p actually be calculated to determine if the necessary amount of energy was lost in this process?

Also, is it wrong to assume that an electron ejected from a 6s orbital still has high energy? Or does the energy of the electron change completely once it is out of the atom?

Any comments on where the electron's energy went and how an electron from the 6s orbital in Cesium (or higher from other atoms) can be contained in a Nitrogen atom would be greatly appreciated!
 
Chemistry news on Phys.org
The ejection of an electron requires the expenditure of energy; a photon above the ionization energy could eject an electron. The energy of the electron that has been ejected will be the energy of the photon minus the ionization energy ... it could be a fraction of an eV.

If you use a GeV photon your ejected electron will be a GeV electron minus noise.
 
UltrafastPED said:
The ejection of an electron requires the expenditure of energy; a photon above the ionization energy could eject an electron. The energy of the electron that has been ejected will be the energy of the photon minus the ionization energy ... it could be a fraction of an eV.

If you use a GeV photon your ejected electron will be a GeV electron minus noise.

Okay. But doesn't the electron also have energy from being in the 6s orbital, like all electrons? Although some energy is expended to eject the electron from Cesium, how could a Nitrogen atom hold such a high energy electron?
 
The energy of an electron in an orbital is negative compared to the energy of a free electron.
An outer electron of cesium only has a high energy compared to an inner electron of caesium, but it does not have a high energy compared to an outer electron of nitrogen.
 
  • Like
Likes   Reactions: 1 person
If you assume that the electron taken from Cs is "accepted" directly by nitrogen, you also assume this is a reaction with ΔH = 0 - neither exo- nor endothermic. How do you think, is it true?

Also - check what the ionization energy of cesium is and compare it to ionization energy of - say - potassium. Are you still sure 6s electrons have so high energy?
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 13 ·
Replies
13
Views
2K
  • · Replies 16 ·
Replies
16
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
Replies
11
Views
3K
  • · Replies 56 ·
2
Replies
56
Views
7K
  • · Replies 10 ·
Replies
10
Views
2K
Replies
7
Views
2K