All Questions
Tagged with electrons physical-chemistry
98
questions
3
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0
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160
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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 ...
7
votes
1
answer
180
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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 ...
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1
vote
3
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2k
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Can electrons be present outside orbitals? If yes, how does this affect chemical reactions?
In my physical chemistry textbook it is written that orbitals are regions where probability of finding electron is high (90% to 100%). But since orbitals are regions of probability, is it possible for ...
- 38.4k
0
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0
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37
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The existence of a principal quantum level or energy shell after the loss of an electron from the outer shell of an atom
With the loss of an electron from $\ce{Li}$ ($\mathrm{1s^2\ 2s^1}$), we get $\ce{Li+}$ ($\mathrm{1s^2}$), then the 2nd shell where the electron had been revolving in $\ce{Li}$ will get disappeared or ...
- 42.7k
2
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2
answers
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What is the maximum number of emission lines when the excited electron of a H atom in n = 6 drops to ground state?
When an electron in a higher energy state jumps to a lower energy state in Bohr’s model of hydrogen atom, it emits a photon which has energy equal to the difference in the energy between the final and ...
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-1
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1
answer
268
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In JJ thomson's cathode ray experiment why is the effect of gravity on the electron not considered? [closed]
Explaining the setup:
The experiment is described in the picture.
Instead of the magnets in the picture imagine two circular coils on both the sides with current running through it, this creates a ...
- 4,826
0
votes
1
answer
95
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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 ...
- 30.8k
6
votes
1
answer
1k
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Why do some elements with high electronegativity exhibit metallic properties?
Metals typically have low electronegativity, which makes them form ions easily and prefer making metallic bonds to covalent. However, some of them seem to disprove that. Take, for example, gold, lead ...
- 60.1k
2
votes
1
answer
68
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How does the electron get back to the ground state at the energy level? [closed]
I have a doubt about how this emission process is carried out in the atom where we have the orbiting electron and we want the electron to return to the fundamental value.
I know that in absorption we ...
- 34.4k
4
votes
1
answer
718
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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 ...
CommunityBot
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-1
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4
answers
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Electron orbitals
Can electrons be found anywhere within the space described by a 3D orbital "90% of the time" (as stated in my textbook)? But that would mean they can be found right next to the nucleus or in ...
- 41.3k
-1
votes
1
answer
142
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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 ...
- 22.5k
-1
votes
2
answers
484
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Why is the d subshell only stable when all of its orbitals are filled? [closed]
I was learning about the Aufbau principle and quantum electronic configuration. Here are some of the yet-unanswered queries that I wish to know the answers to.
I discovered that the d subshell is ...
- 60.1k
18
votes
3
answers
12k
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Do Electrons Really 'Spin'?
With regard to the 'Electron Spin Number', lots of websites mention that electrons don't really spin and that the electron spin number has nothing to do with any physical spinning.
However, my ...
- 37k
-3
votes
1
answer
535
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What does it mean when we say an atom has infinite energy levels/shells? [closed]
My chemistry teacher told that an atom has infinite energy shells according to Bohr model , where electron reside according to its angular momentum and energy.
But in lower classes/ grades I have ...
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