Editing 2021-2022 CP Notes On Valence Electron/Electron Configuration From Periodic Table

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What are the three components of an atom and where are each located in atom? 
 
1) 
2) 
3) 
 
Region of space outside nucleus where electrons are cut into smaller region by: 
1) Energy levels - 
2) Subenergy levels/orbitals - 
*[https://www.youtube.com/watch?v=4WR8Qvsv70sVideo on How Atoms Move Outside Nucleus] 
 
Arrangement of regions outside nucleus where electrons "are" 
 
 
 
Electron configuration - 
 
 
 
Why do we care where electrons are located outside of nucleus? 
 
 
Two names of electrons depending on where they are located outside nucleus. 
 
1) Core electrons - 
2) Valence electrons (ve-) - 
 
 
How do you determine energy (& subenergy) level and number of valence electrons from Periodic Table ([https://sciencenotes.org/wp-content/uploads/2015/07/Blank-Periodic-Table.pdf Blank Periodic Table] for notes): 
 
Rows : 
 
Columns:

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ChemistryWiki | 2021-2022 CP Notes On Valence Electron | RecentChanges | Preferences