1. Energy Unit Orbital Diagrams & Electrons Configurations

2. Orbital filling table

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

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

7. Orbital Diagram for A Fluorine Atom F 1s 2s 2p 3s  

8. Orbital Diagram for A Nitrogen Atom N 1s 2s 2p 3s  

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

10. Electron Configuration Iron Fe 26 e -

13. ElementConfiguration notation Orbital notationNoble gas notation Lithium1s 2 2s 1 ____ ____ ____ ____ ____ 1s 2s 2p [He]2s 1 Beryllium1s 2 2s 2 ____ ____ ____ ____ ____ 1s 2s 2p [He]2s 2 Boron1s 2 2s 2 p 1 ____ ____ ____ ____ ____ 1s 2s 2p [He]2s 2 p 1 Carbon1s 2 2s 2 p 2 ____ ____ ____ ____ ____ 1s 2s 2p [He]2s 2 p 2 Nitrogen1s 2 2s 2 p 3 ____ ____ ____ ____ ____ 1s 2s 2p [He]2s 2 p 3 Oxygen1s 2 2s 2 p 4 ____ ____ ____ ____ ____ 1s 2s 2p [He]2s 2 p 4 Fluorine1s 2 2s 2 p 5 ____ ____ ____ ____ ____ 1s 2s 2p [He]2s 2 p 5 Neon1s 2 2s 2 p 6 ____ ____ ____ ____ ____ 1s 2s 2p [He]2s 2 p 6