1. Electron Configurations
“An element’s permanent address.”

2. Wave Function (Un-neat Orbits)
Heisenburg Uncertainty Principle
It is impossible to determine the exact location and speed of an electron.
What is an orbital?
A 3-D region around the around the nucleus that indicates the probable location of an electron.

3. The 4 Element Orbitals
s orbital p orbital d orbital f orbital
The orbital where an electron may be found depends on the energy level which directly aligns to where an element is positioned in the periodic table.

5. Electron Configurations The arrangement of electrons in an atom.

6. Write the Electron Configuration:
Carbon
Potassium
Zinc
Rubidium
Iodine

7. Write the Shorthand Configuration:
Yttrium
Sulfur
Arsenic

8. Orbital Diagrams
Orbital diagrams tell you the energy level, spin, and probable location of an electron in an atom.
One orbital holds 2 electrons:
s orbital = 2 electrons = ________ orbitals
p orbitals = 6 electrons = ________ orbitals
d orbitals = 10 electrons = ________ orbitals
f orbitals = 14 electrons = ________ orbitals

9. Rules for Filling Electron Orbitals

10. Draw the Orbital Diagram
Boron

11. Draw the Orbital Diagram
Magnesium

12. Draw the Orbital Diagram
Phosphorous