the chemical elements the periodic table organizes elements into: groups or families that have...
TRANSCRIPT
The Chemical Elements
The periodic table organizes elements into:
Groups or Families that have similar properties
Periodic Table Organization
Groups: Vertical Columns
Periods: Horizontal Rows
Group Numbers and Family Names Representative Elements
IA Alkali Metal Family
IIA Alkaline Earth Metal Family
IIIA Aluminum Family
IVA Carbon Family
VA Nitrogen Family
VIA Chalkogen family
VIIA Halogen Family
VIIIA Noble Gas Family
Group Numbers Transition Elements
IIIB ScIVB TiVB VVIB CrVIIB MnVIIIB Fe, Co, NiIB CuIIB Zn
Inner Transition Elements
Period 6 atomic #s 57- 71 Lanthanides
Period 7 atomic #s 89 – 103
Actinides
4 General Classes of Elements
1. Metals
Characteristics
High Luster
Solid at Room Temperature (most)
High Tensile Strength
Malleable and Ductile
Good Electrical Conductors
Form Highly Colored Compounds
Gem Stones
Nonmetals
Characteristics
Most are Gases at Room Temperature
Solids are Brittle
Poor Conductors of Heat and Electricity
Good Insulators
Properties vary Across and Down Table
Metalloids
Characteristics
Solids at room temperature
Less malleable than metals
Less brittle than nonmetals
Less conductive than metals
More conductive than nonmetals
Called Semi – conductors
Noble Gases
Characteristics
Nonreactive Gases at Room Temperature
Don’t Inhale Helium