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jerryscan
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Have atomic models been proposed that do not have overlapping N levels?
jerryscan said:For example orbital 4s2 fills before orbital 3d10. N level 4 overlaps with N level 3.
jerryscan said:I understand the current model predicts 24 Cr to fill [Ar] 3d4 4s2 but actually fills [Ar] 3d5 4s1. Doesn't that show there might be something wrong with the model?
jerryscan said:Quantum theory.
ZapperZ said:This is puzzling. Unless you have a specific question to understand this phenomenon, then this thread has no specific purpose.
ZapperZ said:It is quantum theory that predicts and explain such orbital filling, ie why the 4s is filled ahead of the 3d.
This is puzzling. Unless you have a specific question to understand this phenomenon, then this thread has no specific purpose.
Zz.
jerryscan said:How exactly does quantum theory predict and explain why 24 Cr fills [Ar] 3d5 4s1 and not [Ar] 3d4 4s2?
ZapperZ said:Because it calculates the energy required to fill all of those! It predicts shielding effects, and it shows that since the symmetry of the 3d orbitals extends further from the nucleus, on average, than the 4s orbital, the 3d will NOT have a lower energy than the 4s in terms of filling up the orbitals!
There is no mystery here. This is a very standard topic in quantum chemistry topic, something you would have discovered had you try looking it up.
Zz.
jerryscan said:Quantum theory.
An atomic model is a representation of the structure and behavior of an atom. It is used to explain the properties and interactions of atoms, which are the basic building blocks of matter.
Overlapping N levels in atomic models refer to the idea that electrons can exist in multiple energy levels simultaneously. This means that an electron can have characteristics of more than one energy level at the same time, leading to a more complex arrangement of electrons within an atom.
Some possible alternatives to the traditional atomic model include the Bohr model, which describes electrons as orbiting around the nucleus in specific energy levels, and the quantum mechanical model, which describes the location of electrons in terms of probabilities rather than fixed orbits.
Overlapping N levels challenge the traditional idea that electrons exist in specific, discrete energy levels. This can lead to a more nuanced understanding of atomic structure, as well as new insights into the behavior and properties of atoms.
The concept of overlapping N levels has led to advancements in fields such as materials science, where understanding the behavior of electrons is crucial in developing new materials with specific properties. It has also contributed to the development of technologies such as lasers and transistors.