1. Orbital Diagrams & Electrons Configurations
Energy Unit
Orbital Diagrams & Electrons Configurations

3. Orbital Diagrams
Orbital diagrams are a visual way to show where the electrons are located within an atom.

5. This is the Orbital diagram of Sodium (Na) 11e-

6. Orbital Diagram for A Fluorine Atom
1s 2s p s     

7. Orbital Diagram for A Nitrogen Atom
1s 2s p s     

8. Orbital filling table

9. Electron Configurations
This is the number of electrons in that subshell 1
This is the energy level (shell) 1 S
This is the Subshell (shape of the orbital)

10. Electron Configuration
Iron Fe e-

12. Shorthand Configuration Steps
Find the element on the periodic table and determine the number of electrons.
Determine the closest noble gas that comes before the element .
Write the Symbol for the noble gas in brackets.
Write the electron configuration for the remaining electrons behind the brackets.

13. Shorthand Configuration Noble Gas ConfigurationK=
Ar= K=