Do Now:
Write the PEN number for
the following elements.
1.Carbon
2.Fluorine
3.Magnesium
Today’s Objectives:
Students will be able to distinguish the
families of elements on the periodic table
3.2 – Families of the Periodic Table
1. Alkali Metals
2. Alkaline Earth
Metals
3. Transition
Metals
4. Metalloids
5. Halogens
6. Noble Gases
7. Others
What do you see?
This is the Periodic Table…
http://www.webelements.com/
http://www.webelements.com/
1. Alkali Metals
First column of PT
-hydrogen NOT a part
-extremely reactive
-low ionization energy
-one valence electron
http://www.webelements.com/
2. Alkaline Earth
Metals
Second column of PT
- Good conductors
- Very reactive
- Two valence electrons
http://www.webelements.com/
3. Transition
Metals
Middle section of PT
-high melting points
-high boiling points
-low ionization energy
-malleable
http://www.webelements.com/
4. Metalloids
Between metals and non-metals
- properties of metals on non metals
- excellent semi-conductors
Note: Other Non Metals
Note: Other Metals
http://www.webelements.com/
5. Halogens
17th column of PT
-very reactive
-seven valence electrons
http://www.webelements.com/
6. Noble Gases
18th column of PT
-fairly non-reactive gases
-complete valence shell
http://www.webelements.com/
7. Lanthanides
and Actinides
Very Bottom of PT
-Lanthanides: metals, very reactive
-Actinides: metals, all radioactive
http://www.webelements.com/
Questions?
http://www.webelements.com/
http://www.webelements.com/