Questions tagged [electrons]
Electrons are subatomic particles with the symbol e−. They have a negative electric charge (-1 elementary charge. )
658
questions
3
votes
0
answers
151
views
Is the surface electron affinity of (tribasic) sodium- or calcium phosphate higher?
Let's imagine we have two polycrystalline samples: $\ce{Ca3(PO4)2}$ and $\ce{Na3PO4}$. A free electron is added to both. Some heat is released.
I wanted to check whether my reasoning about this ...
-3
votes
1
answer
79
views
Does the cathode always attain a positive charge or is it just a convention?
Suppose I have a galvanic cell composed of two half cells, one containing Zinc electrode dipped in an electrolytic solution (say of ZnSO4) while the another one having Lithium electrode dipped in ...
- 42.7k
-1
votes
1
answer
47
views
Why can we see color during d-d transition of electron? [duplicate]
As we know that when a ligand approaches the transition metals, the d-orbital loses its degeneracy and in this case electron can jump from lower orbitals to higher orbitals adsorbing the visible light....
- 60k
-2
votes
1
answer
81
views
Why do we only use the principal quantum number to calculate the energy of an electron in an H atom? [duplicate]
According to my high school textbook the energy of an electron in a hydrogen atom is $E = -13.6/n^2~\pu{eV}$, where $n$ is the principal quantum number of the orbital in which the electron is present.
...
- 29.2k
5
votes
1
answer
81
views
Correct Interpretation of Apparent Charge Transfer Coefficients
Good day guys,
I was looking over some $i$ vs $\eta $ for a redox reaction over a copper cathode, the cell has $\ce{LiBf4}$ in THF as the electrolyte. The main reaction taking place is:
$$\ce{N2 + 6 ...
- 267
0
votes
0
answers
24
views
Degradation via electrolysis and electrode surface area
What is the relationship between electrode surface area and processes such as electrolysis/electrode polarization?
Let's say for example I want a fixed electric field between two electrodes in a ...
- 1
7
votes
1
answer
178
views
Overlap of wave functions in Franck-Condon principle
I was revisiting the Franck-Condon-principle and was wondering about one thing.
In the Franck-Condon principle, it is stated that if an electronic transition happens, the vibrational wave functions ...
- 30.8k
-4
votes
1
answer
1k
views
Is this bond Ionic or Covalent, and why? AlBr [closed]
We know a compound could form between NaCl because they are +1 and -1 ions which make them both into a complete valence set.
Could a compound form between Al and Br, for example, and what type of bond ...
- 60k
-1
votes
1
answer
80
views
Degeneracy of Orbitals
(Sorry, in advance if my question is silly or low quality but I want to ask this to someone.)
When an electron enters an orbital, it should technically have an electric Field and also magnetic field(...
CommunityBot
- 1
0
votes
2
answers
250
views
Order of Shielding Effect for orbitals
From what I know Shielding effect is the ability of inner electrons to repel outer electrons and reduce the Nuclear charge felt by the outer electrons and this is caused by electron-electron repulsion....
- 45
3
votes
0
answers
61
views
Is double excitation of nitrogen possible, and would it be able to use it as a central atom in a coordination complex?
I’m 17 and in my 2nd year of high-school (we have it a tad different here in the Czech Republic) and am interested in theoretical chemistry so that’s the explanation of the nature of my question.
So, ...
- 38.4k
3
votes
1
answer
836
views
What about the aromaticity of cyclopropenylidene?
Here's a compound which we have to tell whether it's aromatic or not.
Drawing pi-orbital for the 3-membered ring, I think there are only 2 pi electrons delocalised all over the ring. The orbital ...
- 60k
0
votes
1
answer
53
views
Perforated Cathode in Anode Ray Experiment
While studying about the anode ray experiment (E. Goldstein), I had a doubt pop up in my head. In the experiment, a perforated cathode has been used. What is the exact reason behind that? Upon ...
- 30.4k
0
votes
2
answers
125
views
What does "predicted" mean in an electronic configuration?
I've noticed the term "(predicted)" appearing at the end of electron configurations for heavier elements. Could you explain what it signifies and the reason behind it? I haven't been able to ...
- 41.2k
14
votes
1
answer
4k
views
Inter electronic repulsion in s and d orbitals
This was written in a lecture slide:
Two electrons present in the same d-orbital repel each other more strongly than do two electrons in the same s-orbital.
Why is there a difference in the amount ...
- 159