1. The Periodic Table PART I: HISTORY AND FAMILIES ON THE PERIODIC TABLE

2.  The originator of the periodic table was Russian chemist Dmitri Mendeleev (1834-1907). HISTORY OF THE TABLE, PART I

3.  He originally ordered the periodic table by increasing atomic mass, with elements having common properties under each other.

4. A copy of the first periodic table:

5. HISTORY OF THE TABLE, PART II  The next person to improve on the periodic table was Henry Mosley.

6. HISTORY OF THE TABLE, PART II  He had the idea to order the table based on the atomic number, instead of the mass, giving us a table much like the one we now have today!

7. Periodic Law  When the elements are arranged in order of atomic number, there is a periodic repetition of their chemical and physical properties. This is called the Periodic Law.

8. Breakdown of the Periodic Table  The periodic table is broken down into rows, called periods,  And columns called groups or families.

9. Period

10. Group

11. Representative Elements  All of the elements found in the s-orbital and p-orbital areas are called the representative elements.

12. Representative Elements

13. Metals and Nonmetals  Metals are found on the left side of the periodic table and nonmetals are on the right.

14. Metals and Nonmetals Metals Non-metals Metals

15.  Metals have a high electrical conductivity and a high luster when clean. They are ductile and malleable.

16. Metals and Nonmetals  Nonmetals are generally non-lustrous and are poor conductors of electricity.

17. Metalloids  Metalloids show properties of both metals and nonmetals—they are on both sides of the metal/nonmetal line.

18. Metalloids

19. Alkali Metals  Group 1A is called the Alkali Metals  These are the most reactive elements on the periodic table.

20. Alkaline Earth Metals  Next to the alkali metals are the alkaline earth metals

21. Other Metals  Other metals include transition metals, inner transition metals (a.k.a. rare earth metals) and other metals.

22. Other Metals Transition Metals Inner Transition Metals OtherMetals

23.  There are 2 categories inside the inner transition metal group:  The Lanthanide Series, which is the top row in the inner transition metal, and the Actinide Series which is the second row.

24. Lanthanide

25. Actanide

26. Halogens  Halogens are a group of reactive non-metals.

27. Noble Gases  Noble Gases are the last column of the periodic table.

28. Noble Gases  Noble gases are special because they are unreactive. This is because they have a completely full outside energy level, making them more stable than other elements.

29. Carbon, Nitrogen,Oxygen Families  Because of the fact that some are metals and some are nonmetals, they don’t have as many similar properties.

30. Carbon, Nitrogen & Oxygen Families C a r b o n Family N i t r o g e n Family O x y g e n Family

31. You now have all the material that you will need for Wednesday’s Test. The worksheet is due tomorrow before the quiz.