Chemistry
Notes/Diagrams
Name:
_______________________________________
Period: _____
Electron Configuration Notes
Additional Notes/Examples
Notetaking
Electron Configurations:

 Aufbau Principle:
s
p
d
f
–
–
–
-
Example of Electron Configuration Notation: Carbon
Copper
Electron Configuration Notation Practice
Write the complete Electron Configuration for the following elements:
1. Silicon
2. Titanium
3. Bromine
4. Iron
5. Cesium
1s2 2s2 2p2
?? (you try!)
Noble Gas Notation:

 Steps to writing noble gas notation:
1.
2.
3.
4.
Examples: Magnesium
Iron
1s2
2s2
2p6 3s2
[Ne] 3s2
1s2 2s2 2p6 3s2 3p6 4s2 3d6
[Ar] 4s2 3d6
Noble Gas Notation Practice
Write the Noble Gas Notation for the following elements:
1. Phosphorus
6. Magnesium
2. Strontium
7. Potassium
3. Barium
8. Krypton
4. Bromine
9. Argon
5.Fluorine
10.Calcium
Writing Orbital/Spin Diagrams:
 Based on:
 Pauli’s Exclusion Principle:
 Hund’s Rule:
Examples of Orbital Diagrams and Electron Configurations:
Ex: Carbon
Ex: Chlorine
1s2
___
1s2
2s2
2p2
___
___
___ ___ ___
2s2
2p6
3s2
___
___ ___ ___
___
Orbital Diagrams Practice:
Complete the orbital diagrams for the following elements:
Helium ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
Carbon ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
Magnesium ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
Potassium ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
Aluminum ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
Chlorine ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
3p5
___ ___ ___
Additional Notes/Examples
Notetaking
Valence Electrons:
 Each element in a particular family has the same
number of outer electrons, or __________ __________
 Valence electrons determine the chemical
characteristics of an element
Determine the number of valence electrons for the
following elements:
1.
2.
3.
4.
5.
6.
Lithium
Fluorine
Magnesium
Sulfur
Potassium
Nitrogen
_____
_____
_____
_____
_____
_____
Lewis Dot Diagrams
 Shows:
 Valuable in showing how atoms share electrons in
a covalent bond
 Steps:
1. The element symbol serving as the center
of the diagram represents the nucleus
and all inner level electrons except for
the valence electrons in the outermost
energy level.
2. Place electrons (dots/’x’) on all four
sides of the symbol to represent up to
eight valence electrons (depending on
the element).
3. Remember to put one valence electron on
each side before doubling up the
electrons on any of the sides.
Element
Electron-Dot (Lewis-Dot) Structures
Atomic
Electron
Electron-dot
Number
Configuration
Structure
Lithium
Boron
Carbon
Oxygen
Neon
Chlorine
Sulfur
Magnesium
Lewis Dot Diagram Practice:
Write the Lewis Dot Diagram for the following elements:
1. Beryllium
4. Bromine
2. Nitrogen
5. Tin
3. Arsenic
6. Sodium
Chemistry
Electron Configurations Practice I WS
Complete the following tables for each element identified.
1.
Magnesium
Atomic #: ___________
Orbital Diagram
Electron Configuration
Noble Gas Configuration
# Valence Electrons
Lewis Dot Structure
2.
Bromine
Orbital Diagram
Electron Configuration
Noble Gas Configuration
# Valence Electrons
Lewis Dot Structure
Atomic #: ___________
Name: _______________________________
____ period
Chemistry
Electron Configurations Practice II WS
Name: _______________________________
____ period
Complete the following tables for each element identified.
1.
Aluminum
Atomic #: ___________
Orbital Diagram
Electron Configuration
Noble Gas Configuration
# Valence Electrons
Lewis Dot Structure
2.
Germanium
Orbital Diagram
Electron Configuration
Noble Gas Configuration
# Valence Electrons
Lewis Dot Structure
Atomic #: ___________
Electron Configuration Practice and Review
Directions: Read the instructions for each section below and answer in the space provided. Show all
work for credit.
Part I: Write the full electron configuration for the following elements.
1. Lithium:
2. Chlorine:
3. Silver:
Part II: Write the noble gas electron configuration for the following elements.
4. Calcium:
5. Beryllium:
6. Arsenic:
Part III: Draw the Lewis Dot structure for the following elements in the box provided.
7. Helium
8. Fluorine
9. Xenon
10. Silicon
11. Potassium
Part IV: Identify the element from the following electron configurations.
12. 1s2 2s2 2p4
14. [Ar] 4s2
13. 1s2 2s2 2p6 3s2 3p5
15. [Kr] 5s2 4d9
Part V: Identify the highest energy level and how many electrons are in the highest energy level.
16. Lithium
18. Rhodium
17. Cesium
19. Xenon