All Questions
Tagged with quantum-chemistry electrons
135
questions
-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....
-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.
...
-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(...
- 107
0
votes
1
answer
95
views
How to compute solvent reorganization energy in Marcus' non-equilibrium approach?
I try to solve the following equations for some system solvated in the water. The goal is to obtain value in kcal/mol. Unfortunately, I cannot reach the desired output. May someone help me?
The ...
- 103
-1
votes
1
answer
50
views
Electron energy shells/ levels
Essentially, I am told electron shell closest to the nucleus is the lowest energy level and subsequent shells have higher energy (I.e. those further from the nucleus).
But..... electrons in the ...
-4
votes
1
answer
28
views
Why is there a point of orbits along with quantization in case of energy gaps?
As per my textbook and online sources. The definition of Energy bands I have found is this:
A) Energy levels:
( In a simplified view of an electronic structure of a single atom or isolated molecule.
...
- 412
-1
votes
1
answer
69
views
Refrence on shielding effect vs inter electronic repulsion
Recently I came across a very interesting concept , some scholars were saying that -
Shielding accounts just one component (radial) of interelectronic repulsion not complete repulsion
Who they are -
...
2
votes
0
answers
105
views
Magnetic moment of an electron not parallel to its angular momentum?
For the total angular momentum of an electron $\vec{J} = \vec{L} + \vec{S}$, we're often shown a picture like this
where I assume that the $\vec{L}$ and $\vec{S}$ cones are centred on the $J$ axis ...
-4
votes
1
answer
76
views
what happens to electron after beta minus decay [closed]
In the beta minus decay, electron is emitted from the nucleus. It depends on the previous nuclei(that was before beta decay) how much energy emitted electron will have.
After this event, Internal ...
- 111
0
votes
0
answers
67
views
Can someone elaborate what it means when its said that electron shells do not exist in multi electron systems?
I'm an undergraduate student in chemistry. I'm trying to grapple with all the new stuff we're learning and making sense of it. Now I want to know if electron shells really "exist" in multi ...
- 29
9
votes
3
answers
1k
views
How does an electrons's wave function change when it moves between energy levels?
I'm taking a class on QM and we're simulating the wave function of an electron in a box at the lowest energy level and I'm supposed to change the simulation to show the wave function for the next ...
7
votes
0
answers
101
views
Why do nuclei move considerably slower than electrons
I've been trying to learn quantum chemistry at an introductionary level. While reading I've found out that the Born-Oppenheimer approximation seems to be the reason for the basic and crucial model of ...
- 79
4
votes
1
answer
717
views
Length of a 1D box in hexa-1,3,5-triene
Problem
From Hayward's Quantum Mechanics for Chemists [1, p. 36]
2.3. Calculate the wavelength of light that will be absorbed when
a it electron in hexa-1,3,5-triene, $\ce{CH2=CH—CH=CH—CH=CH2},$ is ...
-2
votes
1
answer
77
views
If you give an electron in a subshell more energy, does it simply "jump" to the next energy level?
Suppose you have an electron in the $\ce{2s}$ subshell of an atom. If energy is given to it, does it simply jump to the next energy level (into the $\ce{3s}$ subshell), or does it move into $\ce{2p}$?
- 193
-1
votes
1
answer
141
views
Which is faster? Electron close to the atom's nucleus or the one far from it and why? [closed]
As we know when the distance between the atom's nucleus and the electron increase the energy of it increase but what about the speed, as physics say that the smaller the radius is the faster the body ...
- 9