1. Chapter 4.2 Tour of the Periodic Table

2. Objective 1: Locate the different families of main-group elements, on the periodic table, describe their characteristic properties, and relate their properties to their electron configurations.

3. Periods and Blocks of the Periodic Table p1 p6 s1 s2 s2 1 d1 d10 2 3 3 4 4 5 5 6 7 4 Periods = energy levels 5 f 1 f 14

5. Has s1 configuration

7. Has s2 configuration

9. soft metal

10. very reactive

11. not found in nature as free elements

13. harder, denser and stronger than alkali metals

14. Reactive, but not as much as alkali

17. Halogens

18. Properties

19. Most reactive nonmetal

20. React vigorously with most metals

22. Metals/metalloids/nonmetals p-block

24. Good conductors of heat and electricity

25. High luster

26. Less reactive than alkali and alkaline earth metals

27. Some are so unreactive, they don’t form compounds

28. Exist in nature as free elementsd-block Au Zn Cu Hg

29. f-block elements: Lanthanide and Actinides Wedged between groups 3 and 4 in the sixth and seventh periods 14 f-block elements in each of the series Actinides are all radioactive Only first 4 actinides have been found naturally on earth Lanthanides are shiny metals similar to alkaline earth metals f-block Samarium Uranium

31. Thorium to Lawrencium ( Bottom row – f-block)

32. To save space – both were set off below main portion of periodic table

33. What it would look like!