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Electron Cloud. Electron Configuration: how the electrons are arranged within the electron cloud Bohr: Published the idea that electrons are energetic particles that exist on distinct energy levels

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Electron cloud
Electron Cloud

  • Electron Configuration: how the electrons are arranged within the electron cloud

  • Bohr: Published the idea that electrons are energetic particles that exist on distinct energy levels

  • Schrodinger: Revised the Bohr model to include the ideas of energy sublevels, wave nature, and much more...


Periodic table labeling
Periodic Table Labeling

S block: blue d block: red

P block: yellow f block: green


Moore s motel
Moore’s Motel

  • Managers:

    • Aufbau: Each room/bed on the lower floors must be occupied before moving to a higher floor.

    • Pauli: A maximum of two guests may occupy a bed. Guests must sleep head to foot.

    • Hund: Single guests must occupy separate beds in a room. No pairing occurs unless no empty beds exist.


Moore s motel1
Moore’s Motel

Rooms available:

S: Single room, has only one bed (sleeps 2)

P: Prestige room, has three beds (sleeps 6)

D: Deluxe room, has five beds (sleeps 10)

F: Fabulous room, has 7 beds (sleeps 14)


The analogy
The Analogy

  • Floors = energy levels (1-7)

  • Rooms = sublevels (s,p,d,f)

  • Beds = orbitals (x,y,z axis)

  • Guests = electrons

  • Head to foot = spin of electron (clockwise and counterclockwise)


Using the periodic table
Using the periodic table:

  • Start with Hydrogen at the 1s position.

  • Continue following the blocks of the table until reaching the element in question.


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