Electron Configuration - Basic introduction
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- čas přidán 25. 09. 2017
- 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.
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-tutor.net/
Final Exams and Video Playlists: www.video-tutor.net/
Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections
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How are you doing, been 5 years already
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Same my professor uses this half up down arrows as if I know what it means. In 10th grade I understood this but Im having such hard time as a college freshman
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That’s not electron configuration. That’s modelling an atom. For some reason I easily learned the half arrow thing haha.
thats called the aufba principle
That's orbital notation
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ACCURATE
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This explains electron configuration WAY better than any teacher I've seen on the internet.
ありがとうございました, Organic Chemistry Tutor.
Arigato ugozaimashita
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What if I need to remove an electron but there are two of the same energy level and they are the highest ..which one do I choose??
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I was really confused with electron configurations earlier but this video explained it brilliantly.
Super helpful, as always.
Just one thing that confuses me, why is (in the case of Fe2+) the 4s orbital the highest energy orbital? I thought the electrons are placed in the orbitals from lowest energy orbital to highest energy orbital and that was the reason for not filling the orbitals "in order" from 1 to 4.
I still don’t get it 💀
Same
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 💩
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Feel free 2 Ask me anything abt electron config if u have any questionssss
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5:29 why did he use 4s instead of 3D??? Please answer me ASAP because I have a quiz in a few hours 😭
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Aidan Simmers got a full mark and passed it was pretty easy
Yo I’m wondering the same thing
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when dealing with Fe +2, why move from 3p to 4s instead of continuing from 3p to 3d?
czcams.com/video/j-nh-U8bhJ8/video.html
It's a diagonal movement
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How did it go?
Bad
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