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Chapter 5 (The principles and rules (Aufbau Principle (electrons occupy…

- - - - bucket filling with water bottom to top
- - - - N=1 1 sublevel 1s is one orbital
      - N=2 2 sub-levels 2s (1 orbital) 2p is (3 orbitals)
      - N=3 3 sub-levels 3s is one orbital 3 p is three orbitials and 3d is five orbitals
      - n=4 is four sub- levels 4 is one orbital 4p is three orbitals 4d is five orbitals and 4f is 7 orbitals
- - - - Low energy- R O Y G B I P- High energy
- - - - 3s 3p 3d
        
        4s 4p 4d 4f
        
        5s 5p 5d 5f
        
        6s 6p 6d
        
        7s 7p