1. Periodic Table Notes #1
You need YOUR periodic table and the blank one.
WCHS Chemistry

2. Periodic Table of Elements
Having a regular, repeating pattern

3. Dimitri Mendeleev (1869)
Credited for coming up with the periodic table
Arranged elements based on properties and increasing atomic mass!
Left blank spaces for undiscovered elements and even predicted their properties!

4. Periodic Law THE ONLY THING WE CHANGED:
We now organize elements by # of protons
Periodic Law
Properties of elements change with increasing atomic number in a periodic way.

5. Blank Periodic Table Groups = vertical (up and down) columns
Elements have similar physical & chemical properties
We will label “A” Groups with ROMAN NUMERALS!

6. I A
VIII
II A
III IV V VI
VII B

7. Blank Periodic Table Groups = vertical (up and down) colums
Elements have similar physical & chemical properties
We will label “A” Groups with ROMAN NUMERALS!
Periods = horizontal rows
Follow a repeating pattern

9. Label your “good” periodic table now with period and group numbers :)

10. Metals
Good conductors, shiny, malleable & ductile (<-- easily shaped)
They GIVE AWAY their electrons easily.

11. Metals give e-

12. Non-Metals
Poor conductors, dull, brittle (<--NOT easily shaped)
Notice that Hydrogen is a non-metal
They TAKE electrons from other elements

13. Non-Metals take e-
Metals give e-

14. Metalloids (“Staircase”)
Have properties of both metals and non-metals.

15. Non-Metals take e-
Metals give e-
Metalloids

16. Groups to Know IA
IIA
VIIA
VIIIA
Alkali metals - VERY reactive

17. Non-Metals take e-
Metals give e-
Alkali Metals
Metalloids

18. Groups to Know IA Alkali metals - VERY REACTIVE IIA
VIIA
VIIIA
Alkaline Earth metals - REACTIVE

19. Alkali Metals Metalloids Metals give e- Non-Metals take e-
Alkaline Earth Metals
Metalloids

20. Groups to Know IA Alkali metals - VERY REACTIVE
IIA Alkaline Earth metals - REACTIVE
VIIA
VIIIA
Transition Metals - from metals to non-metals

21. Alkali Metals Metalloids Transition Metals Metals give e-
Non-Metals take e-
Metals give e-
Alkali Metals
Alkaline Earth Metals
Transition Metals
Metalloids

22. Groups to Know IA Alkali metals - VERY REACTIVE
IIA Alkaline Earth metals - REACTIVE
Transition Metals - from metals to non-metals
VIIA
VIIIA
Rare Earth Metals - after #94 = man-made

23. Alkali Metals Metalloids Transition Metals Rare Earth Metals
Non-Metals take e-
Metals give e-
Alkali Metals
Alkaline Earth Metals
Transition Metals
Metalloids
Rare Earth Metals

24. Groups to Know IA Alkali metals - VERY REACTIVE
IIA Alkaline Earth metals - REACTIVE
Transition Metals - from metals to non-metals
Rare Earth Metals - after #94 = man-made
VIIA
VIIIA
Halogens - VERY REACTIVE (nonmetals)

25. Alkali Metals Halogens Metalloids Transition Metals Rare Earth Metals
Non-Metals take e-
Metals give e-
Alkali Metals
Halogens
Alkaline Earth Metals
Transition Metals
Metalloids
Rare Earth Metals

26. Groups to Know IA Alkali metals - VERY REACTIVE
IIA Alkaline Earth metals - REACTIVE
Transition Metals - from metals to non-metals
Rare Earth Metals - after #94 = man-made
VIIA Halogens - VERY REACTIVE (nonmetals)
VIIIA
Noble Gases - INERT = DO NOT react

27. Alkali Metals Halogens Noble Gases Metalloids Transition Metals
Non-Metals take e-
Metals give e-
Alkali Metals
Halogens
Alkaline Earth Metals
Noble Gases
Transition Metals
Metalloids
Rare Earth Metals