Transcript Periodic Tablex

The Periodic Table
I. History of the Periodic Table
Mendeleev
Mosely
A. Dmitri Mendeleev
 Dmitri Mendeleev (1869, Russian)
• Organized elements by
increasing atomic mass.
• Predicted the existence of
undiscovered elements.
B. Henry Mosely
 Henry Mosely (1913, British)
• Organized elements by
increasing atomic number.
• Fixed problems in Mendeleev’s
arrangement.
The Periodic Table
II. Organization Metallic Character
Rows & Columns
Table Sections
A. Metallic Character
1
2
3
4
5
6
7
 Metals
 Nonmetals
 Metalloids
B. Table Sections
1
2
3
4
5
6
7
 Representative Elements
 Transition Metals
 Inner Transition Metals
B. Table Sections
1
2
3
4
5
6
7
Overall Configuration
Lanthanides - part of period 6
Actinides - part of period 7
C. Columns & Rows
1
2
3
4
5
6
7
 Group (Family)
 Period
The Periodic Table
III. Periodic Trends
Terms
Periodic Trends
Dot Diagrams
A. Terms
 Periodic Law
• Properties of elements repeat
periodically when the elements
are arranged by increasing
atomic number.
A. Terms
 Valence Electrons
• e- in the outermost energy level
 Atomic Radius
 First Ionization Energy
• energy required to remove an efrom a neutral atom
B. Periodic Trends
 Atomic Radius
• Increases to the LEFT and DOWN.
1
2
3
4
5
6
7
B. Periodic Trends
 First Ionization Energy
• Increases to the RIGHT and UP.
1
2
3
4
5
6
7
B. Periodic Trends
 Which atom has the larger radius?
•Be or Ba
Ba
•Ca or Br
Ca
B. Periodic Trends
 Which atom has the higher 1st I.E.?
•N or Bi
N
•Ba or Ne
Ne
B. Periodic Trends
 Group # = # of valence e- (except He)
• Families have similar reactivity.
 Period # = # of energy levels
1A
1
2
3
4
5
6
7
8A
2A
3A 4A 5A 6A 7A
C. Dot Diagrams
 Dots represent the valence e-.
 EX: Sodium
 EX: Chlorine
Shading Your Periodic Table
1. Shade the following Groups on your Periodic Table
a. Hydrogen in gray
b. Alkali Metals in red. (IA)
c. Alkaline Earth Metals in orange. (IIA)
d. Transition Metals in the middle of the table in yellow. (all “B”
groups)
e. Lanthanide Series in light blue. (57 – 71)
f. Actinide Series in dark blue. (89 -103)
g. Basic Metals green. (6, 7, 8, 15, 16, 34)
h. Halogens light brown. (VIIA) Noble Gases light green. (VIIIA)
2. Place a small Red dot inside of Br and Hg to indicate liquids
3. Place a small Green dot inside of N, O, F, Cl and H to indicate
gases (use the same green as your Noble Gases)