1. Electron Configuration

2. What is Electron Configuration?
The arrangement of electrons in an atom

3. What do I need?
Energy Level (1-7)
Orbital (s,p,d,f)
How many electrons
1 s 2

4. Energy Levels 1st energy level: 2 2nd energy level: 8
3rd energy level: 18
4th energy level: 32

5. Orbitals
Orbital: three-dimensional space around the nucleus that is the probable location of an electron
s  holds a max of 2
p  holds a max of 6
d  holds a max of 10
f  holds a max of 14

7. Diagonal Rule

8. Practice H:
He:
Li:
Be: B: C:
Ca:
Sc:
Zn:
Ga:
Cd:

9. Shorthand (Noble Gas Configuration)
Easy! Use the noble gas in the row above the element
Mg:
As:
Ba:
Kr: