Aufbau's Principle, Hund's Rule & Pauli's Exclusion Principle - Electron Configuration - Chemistry

This chemistry video explains what is the aufbau's principle, hund's rule, and pauli's exclusion principle and how it relates to orbital diagrams, electron configuration, and quantum numbers. The basic idea of aufbau's principle is that you should fill orbitals with arrows starting from the lowest energy level first. Hund's rule states that you should electrons to degenerate orbitals one at a time with parallel spins. Pauli's exclusion principle states that no two electrons can have the same set of 4 quantum numbers.
Electron Configuration - Basic Intro:
• Electron Configuration...
Noble Gas Notation:
• Electron Configuration...
Electron Configuration Exceptions:
• Electron Configuration...
Electron Configuration of Ions:
• Electron Configuration...
How To Identify The Element:
• Electron Configuration...
Intro to Quantum Numbers:
• Quantum Numbers
__________________________________
Orbitals & Atomic Energy Levels:
• Orbitals, Atomic Energ...
Maximum Number of Electrons:
• How To Determine The M...
Paramagnetic & Diamagnetic Elements:
• Paramagnetic & Diamagn...
Aufbau's Principle & Hund's Rule:
• Aufbau's Principle, Hu...
Valence Electrons & Periodic Table:
• Valence Electrons and ...
_____________________________________
Effective Nuclear Charge:
• How To Calculate The E...
Quantum Numbers - Mega Review:
• Quantum Numbers - n, l...
Quantum Numbers - Practice Test:
• Orbitals, Quantum Numb...
Lewis Structures Super Review:
• Lewis Structures, Intr...
Hybridization of Atomic Orbitals:
• Hybridization of Atomi...
Molecular Orbital Theory:
• Molecular Orbital Theo...

[@TheOrganicChemistryTutor]

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[@fihrchaudhary972]

Basically, it defined terms, this is a run down of what they do:
1) Aufbau Principle: says that electrons fill orbitals lowest available energy levels in an atom's ground state.
2): Pauli Exclusion Principle: No 2 electrons can have the same 4 quantum numbers.
3) Hund's Rule: Electrons fill orbitals one by one before filling energy levels in pairs. They fill level with opposite spins.

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Professor Organic Chemistry Tutor, thank you for a short explanation of Aufbau's Principle, Hund's Rule and Pauli's Exclusion Principle and how it relates to Orbital Diagrams, Electron Configuration/Quantum Numbers in AP/General Chemistry. Each Rule/Principle increases my understanding of Energy Levels, Orbitals and Quantum Numbers in Modern Chemistry. This is an error free video/lecture on UA-cam TV with the Organic Chemistry Tutor.

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[@thomasfernholz8789]

Friedrich Hund and Wolfgang Pauli were physicists. "Aufbau" is the German word for "build-up". It's therefore not "Aufbau's principle". It is the "Aufbau-principle".

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The last minute is vastly more complicated than the start

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So how is Ml used? The other 3 uniquely define an electron in your model. Actually no, they don't, there are 3 electrons in 2p with up spin. So Ml differentiates between them then?

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How calculate the amount of energy in [eV] for each suborbital and its orbital? For example to compute the energy of Carbon?

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Dr. Aufbau is my 2nd favorite chemist, right after Dr. BrINClHOF.

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This video makes so much sense, I'm completely baffled that my chemistry book decided to introduce these principles in the opposite order-?? This is so much more logical?

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So basically, all the principles come up to the same thing.

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IIT ?

[@jett6275]

Why did I saw on google bunch illustrate you can also fill the orbitals with single down arrow first. Is that right? Also why does it have to be upward first? (if the first thing I mentioned is wrong)

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yes you can fill orbital with down or up arrow

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Thanks

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2:02 why are unpaired electrons more stable than paired electrons? I thought it was the other way around.

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[@Anonymityfan]

What is Mendalung's rule?

[@hajerkhalid1719]

About the arrow, do we draw it half or full ?

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Hajer Khalid it doesnt matter

[@jggaming6243]

Full arrows because we are dealing with electrons not radicals

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My chemistry teacher explain 1 year and you explain only 5 minutes but I understand 5 minutes than 1 year

[@kewan9967]

الأفضل

[@huzaifaaminabbasi6460]

Sir you spoke something wrong.
'l' is not magnetic quantum number, it's azimuthal.

[@martyrthekiso5260]

Listen properly, he corrected it and it can also be called Agular Quantum Number

[@huzaifaaminabbasi6460]

Oh I'm sorry!

[@dudeman3913]

Electrons practice social distancing 😆

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It seems like your chemistry text book determines how well you understand chemistry. Sad cus i don't understand

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Name of the black board software?

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[@jhodelaisla4513]

Why aufbau principle also called as building up principle?

[@asnek2527]

I saw this in an another comment; apparently aufbau means building up in german? The comment stated something about it being called the aufbau-principle and not aufbau's principle because of that.

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It's been 4 years, do you still don't get it?

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[@nola9042]

I still don’t understand hunds rules?? how do you know that those electrons are degenerative or whatever