Quantum Number: Atomic Structure - 27 for class 11th
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- เผยแพร่เมื่อ 5 ก.พ. 2025
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Quantum-mechanical analysis of the MO method and VB method from the position of PQS.
The MO method and the VB method are analyzed using the principle of quantum superposition (PQS) and the method of describing a quantum system consisting of several parts. It is shown that the main assumption of the molecular orbitals method (namely, that the molecular orbital can be represented like a linear combination of overlapping atomic orbitals) enters into an insurmountable contradiction with the principle of quantum superposition. It is also shown that the description of a quantum system consisting of several parts (adopted in quantum mechanics) actually prohibits ascribe in VB method to members of equation corresponding canonical structures.
Using the quantum superposition principle, the MO method and the VB method were analyzed and it is shown that they are in contradiction with quantum mechanics. Also, using the quantum-mechanical description of a system consisting of several parts, it is shown that the attribution of canonical structures to the members of the equation is incorrect. Therefore, both the MO method and the VB method did not describe molecules with chemical bonds but actually, a lot of atoms (of which the described molecules consisted). That is, in the quantum chemical calculations, the chemical bond was "lost". Therefore, in order to "introduce" a chemical bond into calculations and avoid conflict with quantum mechanics, it is suggested to postulate the existence of MO as a new fundamental quality that describes a specific chemical bond and is not derived from simpler structural elements.
Quantum-mechanical analysis of the MO method and VB method from the position of PQS.
vixra.org/pdf/1704.0068v1.pdf
Bezverkhniy Volodymyr (viXra): vixra.org/author/bezverkhniy_volodymyr_dmytrovych
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Electrons are not moving in fixed orbits . i.e they are moving at random .Then why separately sub orbits are mentioned ? So again we are binding them in a rule
In this model electrons do not revolve in fixed orbits , Then why should we know their probable position of location ?
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@santosh kumar n=4 will have 4 values ie l=0,1,2,3,and the max value is 3 !
what is z component
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Sir,1s;2s,2p;3s,3p,3d ka shape kaisa hi because figure is not clear .
Very useful
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Nice lecture but according to Sommerfeld for n=4, 4f orbital has the circular shape and you told that 4s has the circular shape..anyone pls clear my doubt
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U teach superb sir.
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great sir tsm
Nice videos
nice. r u sure the orbital shape is circular and elliptical according to sommerfield and bohrs
Helpful
sr ...... for 5th orbit ...... ?
Bheesham Khatri for 5th orbit 'l' value is 0,1,2,3,4 => 5s, 5p, 5d, 5f, 5g
And 'm' value for 5th orbit is
9orbital => -4, -3, -2, -1, 0, +1, +2, +3, +4
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Ty sir nice lecture
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Good
The L. Pauling's resonance theory analyzed using principle of quantum
superposition, that is the principle of superposition "wave function", which is the main positive
principle of quantum mechanics. The principle of quantum superposition is essentially a basic
property of the wave function. By example of benzene molecule is shown that the principle of
quantum superposition, and hence the quantum mechanics in general is in insurmountable conflict
with the resonance theory.
Quantum-mechanical aspects of the L. Pauling's resonance theory:
vixra.org/pdf/1702.0333v1.pdf
Bezverkhniy Volodymyr (viXra): vixra.org/author/bezverkhniy_volodymyr_dmytrovych
Bezverkhniy Volodymyr (Archive.org):
archive.org/details/@threeelectronbond
Damn useful
sir what is maximum value of 'l' for n=4 ?.
how many values can 'l' have for n=4
santosh kumar 3
n=4 l= 0,1,2,3 i.e. it will be having 4 values
Chirag Shah no it's 3 means 'f' sub-orbit because .•. 'l'= n-1
.•. 4-1=3
so, 'l'=3
n=4 for 'l'=3
yeah bro you re rite i just said that when n=4 l=3 or 0 1 2 3 mean it may be 2s 2p 3d 3f
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sir lecture accha hai but sir isse poor english main ya poora hindi main available krawae
thanx
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