Questions tagged [electrons]
Electrons are subatomic particles with the symbol e−. They have a negative electric charge (-1 elementary charge. )
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How do dielectric molecules in a liquid phase align when polarized?
As seen in the diagram, when a dielectric material becomes electrically polarized, the molecules align themselves in a manner where the respective charges are parallel to each other horizontally.
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Maximum number of Spectral Lines "A better quantum model shows that there will be n^2 transitions"?
I was parsing the following post What is the maximum number of emission lines when the excited electron of a H atom in n = 6 drops to ground state? and came across with the reply from @porphyrin.
cite ...
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Why does allyl anion have only two resonance structures?
There are only two resonance structures of allyl anion with negative charge distributed over positions 1 and 3:
$$\ce{\overset{-}{C}H2-CH=CH2 <-> CH_2=CH-\overset{-}{C}H2}.$$
What's the criteria ...
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Is the C-I bond polar?
Carbon and iodine have similar electronegativities. The reason quoted for the C-I bond having polarity is that iodine is more polarisable.
But what does this actually mean? Carbon distorts the ...
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Equilibrium cell potential question
In an attempt to wrap my head around the basics of electrochemistry I'm working my way through Wesley R. Browne's 'Electrochemistry' primer.
With regards to the equilibrium potential of an ...
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Properties that probe electron kinetic energy
This post is inspired by a question regarding the meaning of off-diagonal elements of the KE matrix (in some AO basis). One answer suggests that a diagonalized KE matrix might not be very useful. I ...
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What will happen if electron as a wave undergo destructive interference while travelling in its Orbit?
Today I came across a justification of Bohr's angular momentum quantization using the De- Broglie's hypothesis.
The justification said that since the electrons are having wave nature also then while ...
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Effective nuclear charge and repulsion of electrons
Effective nuclear charge increases across a period. This is justified because number of protons increase in nucleus across a period, and there's no change in the number of "shielding" electrons. ...
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Does the object blocking the cathode rays in Thomson's cathode Ray experiment need to be opaque?
Thomson kept an "opaque" object in the cathode ray tube and he saw the shadow of the object.then he decide that the cathode rays follow a rectilinear path. But Thomson also discovered that cathode ...
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In a hydrogen fuel cell stack, is pure oxygen required?
I have been researching making a hydrogen fuel cell to produce electricity. However, since pure oxygen is expensive, is pure oxygen needed for the dry fuel cell stack or can the oxygen in the air be ...
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Why aren't free radicals considered resonance forms?
In C, the answer states that electrons must come in pairs. And so C does not show resonance forms.
But here I read that if there is an unpaired electron, it is a free radical. Why can't free radicals ...
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How do I increase the amount of electrons transferred in a battery?
I made a simple battery with $\ce{Al}$ as anode electrode with $\pu{0.7 M}$ aluminum sulfate electrolyte. Platinum is my cathode electrode with $\pu{2 x 10^-4 M}$ $\ce{KOH}$ solution. I am generating $...
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Bombarding molecules with electrons
I have been reading a book titled "High Voltage Engineering". It seems to me that in this book it is considered that in a gas when they collide an electron with a molecule, the molecule is stationary ...
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Workfunction and Bond Energy
Workfunction is the minimum energy required to remove an electron from the surface of the material. If the striking photons does not have the required energy then it won't be able to eject the ...
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Do all electrons in an element move at the same speed and have the same momentum angular vs non-angular momentum?
Do electrons' speed, energy, angular momentum increase when they are in the p, d, and f rather than in the s orbital? Do all electrons in a specific orbital, say for example, the f orbital all have ...
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