2. 10 Grade Science Week 10 1st Semester, 2008
TEK OBJECTIVE:
Relate the chemical behavior of an element including bonding, to its placement on the periodic table

8. Li Be N Ne Li Be N Ne

10. Li Li Be Be N N Ne Ne

20. There are 7 Periods on the Periodic Table

21. There are 18 Groups on the Periodic Table

24. The Chemical Families Checklist 8 note cards 1 full page of mini-PTs
#1)
Checklist
8 note cards
1 full page of mini-PTs
1 strip of mini-PTs
Number the note cards on lined-side in upper left corner (see example)
Number the mini-PTs: 1-6 on full page, 7 and 8 on strip
Label Cards #1) Metals #2) Nonmetals #3) Metalloids #4) Alkali Metals #5) Alkaline Earth Metals #6) Transition Metals #7) Halogens #8) Nobel Gases

25. The Chemical Families 1. Metals Groups 1-12 plus 10 more elements
Lustrous – Shiny “metallic” appearance
Conduct heat and electricity
Solids at room temperature – except mercury (Hg)
High melting points and high densities
Malleable (able to be hammered into shapes)
Ductile (able to be drawn into wire)

26. The Chemical Families 2. Nonmetals Found in Groups 13-18, and Hydrogen
Gain electrons easily
Poor conductors of heat and electricity
Brittle solids
Little or no metallic luster, various colors

27. The Chemical Families 3. Metalloids Semiconductors
B, Si, Ge, As, Sb, Te
Possess some characteristics of metals and some of nonmetals
Intermediate conductors of heat and electricity under certain conditions

28. The Chemical Families 4. Alkali Metals Examples:
Group 1 (except Hydrogen)
Soft, silver-colored metals
Lower densities than the other metals
One loosely bound valence electron in outer shell
Highly reactive, especially with the halogens
Examples:

29. The Chemical Families 5. Alkaline Earth Metals Group 2
Soft, silver-colored metals
Two valence electrons in the outer shell
Examples:

30. The Chemical Families 6. Transition Metals Groups 3-12
Very hard metals
High melting and boiling points
High electrical conductivity
Malleable

31. The Chemical Families 7. Halogens Group 17 “halo-” means salt
Seven valence electrons (only one short of a stable octet)
Highly reactive, especially with alkali metals (group 1) and alkaline earth metals (group 2)
Examples:

32. The Chemical Families 8. Noble Gas Group 18
Do not react easily with other elements
Complete valence shell (stable octet)
Very low boiling points (all gases at room temperature)
Examples:

33. Group #
Period #
(# of valence electrons)
Alkali Metals
Alkaline Earth Metals
Transition Metals
Other Metals
Metalloids
Nonmetals
Halogens
Nobel Gases

34. Group #
Period # 1 2 3 4 5 6 7
(# of valence electrons)
Alkali Metals
Alkaline Earth Metals
Transition Metals
Other Metals
Metalloids
Nonmetals
Halogens
Nobel Gases