1. Periodic Table Breakdown

2. Dmitri Mendeleev Father of the Periodic Table
Russian scientist circa mid 1800s
Arranged Periodic Table by atomic weights & chemical properties
SONG!!!!

3. Rows or Periods

4. Groups or Families

5. Elements in the same groups (or families) have:
Similar properties
The same number of valence electrons (outermost e-)

6. Metals

7. Metals
Metals are lustrous (shiny), malleable, ductile, and are good conductors of heat and electricity.
They are mostly solids at room temp.
What is one exception?
Hydrogen – it doesn’t have a family 

8. Nonmetals

9. Nonmetals Nonmetals are the opposite.
They are dull, brittle, nonconductors (insulators).
Some are solid, but many are gases, and Bromine is a liquid.

10. Metalloids

11. Metalloids Metalloids, aka semi- metals are just that.
They have characteristics of both metals and nonmetals.
They are shiny but brittle.
And they are semiconductors (can conduct electricity under some conditions but not others, making it a good medium for the control of electrical current)
Silicon – used in electronic devices and solar panels

12. Can you sing THIS?

13. Periodic Table Groups/ Families

14. Alkali Metals Very reactive metals Do not occur freely in nature
One valence electron – therefore likely to form ionic bond
Can explode if exposed to water! Yikes!

15. “Chemistry is a bit like that: powerful enough to do great things in the world, but also dangerous enough to do terrible things just as easily. If you don’t respect it, chemistry bites.” ~Theodore Gray~

16. Alkaline Earth Metals
Oxidation number of +2 making them very reactive, but tamer than Alkali metals
Because so reactive, alkaline earth metals are NOT found freely in nature

17. Transition Metals Valence electrons are present in more than one shell
Pretty stable, but some oxidize slowly
Iron, Cobalt, & Nickel are the only metals that produce a magnetic field

18. Inner Transition Metals (Rare Earths)
Lanthanides & Actinides
All of the actinides are radioactive
Many are called “trans-uranium” which means synthetic, or man- made

19. Halogens Term halogen means “salt- former”
Highly reactive (seeking one e-)
By itself, very smelly substances
Compounds containing halogens are called “salts”

20. Noble Gases Full outer shell – 8 valence electrons
Noble gases do not form compounds readily
Elements are stable on its own