Electron Configuration - Basic introduction

This chemistry video tutorial provides a basic introduction into electron configuration. It contains plenty of practice problems including the electron configuration of transition metal ions.
Chemistry 1 Final Exam Review: • General Chemistry 1 Re...
Quantum Numbers - Free Formula Sheet:
bit.ly/3XTLoVY
Chemistry Video Lessons:
www.video-tuto...
___________________________
Electron Configuration of Ions:
• Electron Configuration...
Noble Gas Notation:
• Electron Configuration...
Electron Configuration Exceptions:
• 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...
______________________________________
Final Exams and Video Playlists:
www.video-tuto...

[@TheOrganicChemistryTutor]

Quantum Numbers - Free Formula Sheet: bit.ly/3XTLoVY Chapter 7 - Video Lessons: www.video-tutor.net/general-chemistry.html Chemistry 1 Final Exam Review: kzbin.info/www/bejne/a6raYox-bL50bcU

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[@mariarevenikioti8127]

But wait, doesn't the 4s orbital have less energy than the 3d orbital and should therefore be filled out first? 06:24

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[@capsized3timesandcounting]

I'm probably just stupid but at 6:30 when he says how you take the two electrons from the highest energy level and he takes them from 4s, should he not be taking them from 3d? Since 3d is higher than 4s?

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That's what I thought too.. I'm confused

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I imagine a Bhor model and all the 4 group electrons would be on the outermost shell, they would basically just be valence electrons so they'd be removed first even if they have lower energy.

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[@esethusihle2003]

when dealing with Fe +2, why move from 3p to 4s instead of continuing from 3p to 3d?

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[@izzy.am13]

It's a diagonal movement

[@memelator]

Why do we skip the D orbital for Fe (iron) 5:12

[@rickoalvarado]

I still don’t get it 💀

[@humairawaheed1944]

Same

[@op.kuraii]

​Just add the small numbers and always start with 1s² until it sums up to the atomic number of the element U have to follow the order btw. (So u gotta memorize/familiarize urself w it) so for example u gotta get the electron config of OXYGEN, the atomic number of it is 8 so we gotta add those lil numbers till it sums up to 8. we start w 1s² and follow the order like in the video, so: Oxygen/O²= 1s² 2s² 2p⁴ Try it urself, add them small numbers and see if u got 8. If u got 8 it means this electron config is right. So remember to not add the whole number or the big numbers and u don't gotta do anything w the letters beside them. just the exponents or small numbers on the top right. Remember u can change the small number like in oxygen's electron configuration, it was 2p⁴ instead of 2p⁶. We changed it to 2p⁴ BCS if u zont u won't get the sum of 8. So again follow the order. Starts with 1s² until it sums up to whatever atomic number. Usually the atomic number is given so all u gotta do is add. Another thing to remember. You can only CHANGE the small numbers ONCE and it's supposed to be changed in the LAST. u can't JS change the small number to whatever number u want to make things faster. U gotta follow the order of it till it sums up to the atomic number: 1s² 2s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ and so on. Another ex: Find the electron configuration of potassium We gotta get the atomic number first. so JS get the periodic table or if u have it memorized that's fine too. So the atomic number of potassium is 19. Now we can start adding and find the electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹ See how we changed the small number of the last one? 3d¹ instead of 3d¹⁰. u can change the last one to whatever number just don't go over the original number in the actual electron config So if ur last is 2s² you can change it to 2s¹ only. If ur last is 2p⁶ u can change it to 2p¹, 2p², 2p³, 2p⁴, 2p⁵ only. U can't just go 2p⁹⁹.Follow the chart of the electron configuration. So the S are =2 max The P are =6 max The D's are =10 max The F's are= 14 max If ur gonna change the small number make sure u don't go over these numbers. I hope this helped cuz I lit wrote this for idek how long 💩 ​@@humairawaheed1944

[@Skiktles]

@@op.kuraiiyou replied to a 2yrs ago comment😭 btw this helped me, thank you :)

[@op.kuraii]

@@Skiktles lmaoo i didnt even notice b4😭 also thank u too that u found my comment helpful and ofc ur welcome 😝 Feel free 2 Ask me anything abt electron config if u have any questionssss

[@empty6088]

Thanks, really helped me. Even if its long, its clear and understandable. ​@@op.kuraii

[@SylviaChang-k7e]

bro this is ridiculous, I couldn't learn it in a 3h lecture, but understood everything in a 10 min youtube vid wow.

[@smj_dyk]

I would've gotten my PhD 2 weeks later, on my 1st year in Harvard if this guy was my lecture...