How do atoms
bond together ?

Elements in Group 1 all have 1 valence electron, so they will have similiar properties.

Valence Electrons

​are electrons that in the outermost energy level. They are important because they determine how atoms will act

Now go back to pg 36- we will add valence to your chart

Now, we will add valence to your colored table (pg 36)

Group 1 Alkali metals have 1 valence electron. Place a 1 on top of this column on your periodic table

Now, we will add valence to your colored table (pg 36)

Group 2 Alkaline Earth metals have 2 valence electron. Place a 2 on top of this column on your periodic table

Transition metals are group 3-12 . These have a wide variety of valence numbers and this cannot be known by just looking at the table

Now add valence for Groups 13-18. Use the chart below to help you....

Now, carefully check your work

​Pg 36 Should look like this... check your #'s

Now check your notes carefully