1. DO NOW – 9/9/14
Complete Numbers 7-10 & using the periodic table on page 123 of your agenda.

2. Introducing the Periodic Table

5. Atomic number
Chemical symbol
Element name
Atomic mass
Atomic number
Chemical symbol
Element name
Atomic mass

8. Au Ag Pt Cu Hg O H Si

10. Au Ag Pt Cu Hg 18

11. Au Ag Pt Cu Hg O H Si 18

13. Au Ag Pt Cu Hg O H Si 18 7

22. Element
Key

23. B. What is the Periodic Table?
_________________________

24. B. What is the Periodic Table (PT)?
The PT lists and organizes all of the known chemical elements that exist in the universe.

25. Vertical
Columns
__________

26. C. Vertical Column
These are called groups or families. Elements in the same group have similar chemical and physical properties.

27. The Atomic # is
________________

28. D. The Atomic Number is
the number of protons in an element. Elements are arranged by the increasing atomic number.

29. The horizontal rows are called periods.
___________________________________

30. E. The horizontal rows are called periods.
There are 7 periods. Each period tells how many electron shells an atom has.

31. Why are these at the bottom?
_________________

32. F. Why are these at the bottom?
These two rows were put at the bottom so the table would not be so big.

33. Element Symbols
________________

34. G. Element Symbol
Element symbols are written with the first letter a capital letter and any other letters as lower case letters.

35. Metals
Metalloids
Non-metals

36. Non-metals (Y) Metalloids (G) Metals (B) Dull – no luster
Shiny and dull
Shiny luster
Insulators
Semiconductors
Good conductors
Sometimes both
Malleable
Brittle
Middle melting point
High melting point
Low melting point
Lower densities
Acts like both
High densities

37. Stair Steps
________________

38. Or the zigzag line separates the metals and non-metals.
I. Stair Steps
Or the zigzag line separates the metals and non-metals.