1. Electron Dot Diagrams and Ions

2. Electron Dot Diagrams Show ONLY outer level electrons, or valence e-
Also called Lewis diagrams
Begin with the element’s symbol
Use the PT to determine the number of outer level electrons
Place up to 2 dots per side for a total of up to 8 electrons

3. Electron Dot Diagrams
Ex: 1 electron X

4. Electron Dot Diagrams
Ex: 2 electrons X

5. X Electron Dot Diagrams Ex: 3 electrons
Choose a clockwise or counterclockwise direction and fill empty sides with an electron before pairing any electrons.

6. X Electron Dot Diagrams Ex: 4 electrons
Choose a clockwise or counterclockwise direction and fill empty sides with an electron before pairing any electrons.

7. X Electron Dot Diagrams Ex: 5 electrons
Choose a clockwise or counterclockwise direction and fill empty sides with an electron before pairing any electrons.

8. X Electron Dot Diagrams Ex: 6 electrons
Choose a clockwise or counterclockwise direction and fill empty sides with an electron before pairing any electrons.

9. X Electron Dot Diagrams Ex: 7 electrons
Choose a clockwise or counterclockwise direction and fill empty sides with an electron before pairing any electrons.

10. X Electron Dot Diagrams Ex: 8 electrons
THIS IS THE MOST ELECTRONS THAT EVER ARE INCLUDED IN ELECTRON DOT DIAGRAMS.

11. Electron Dot Diagrams Time to practice what you’ve learned
For the following elements, create electron dot diagrams.
aluminum
potassium
argon
sulfur
phosphorus
silicon
barium
iodine

12. CHEMICAL BONDING
The number of electrons in the _______energy level determines whether an atom will form bonds.
These electrons are also called ___________ electrons.
Atoms bond to get a ________ outer level.
For all E levels beyond the first, the outermost E level is considered to be full if it contains ______ (#) electrons.
The first E level is full with ____ (#) electrons.
Why are noble gases nonreactive?

13. IONS Chem 4 Kids example METALS
have a low/high number of valence electrons.
metals lose/gain electrons when bonding.
form positive/negative ions.
NONMETALS
have a low/high number of valence electrons.
lose/gain electrons when bonding.
form positive/negative ions.
ions end in –ide

14. IONS- Practice aluminum potassium argon oxygen phosphorus silicon
Write the ions formed by the elements.
aluminum
potassium
argon
oxygen
phosphorus
silicon
barium
iodine