Periodic Table of Elements

The Periodic Table Vertical columns are called Groups Horizontal rows are called Periods

Regions of the Periodic Table Left side (excluding Hydrogen) are the Metals – Most metals exist as solids at room temperature. – Usually shiny, can be drawn into wires, can be pounded into sheets, and are good conductors of heat and electricity. – Examples: Gold, Calcium Right side are the Nonmetals – Most nonmetals are gases, are brittle and are poor conductors of heat and electricity at room temperature. – Examples: Helium, Chlorine

Regions of the Periodic Table The elements along the stairstep line between the metals and nonmetals are called Metalloids – These have properties of both metals and nonmetals – Examples: Boron, Silicon

Different groups of the Periodic table Metals Group 1 – The Alkali Metals Group 2 – The Alkaline Earth Metals Groups 3-12 – The Transition elements (or Transition metals) Groups 8,9,10 – The Iron Triad Group 11 – The Coinage Metals

Different groups of the Periodic table Nonmetal groups Group 17 – The Halogens Group 18 – Noble Gases

Different groups of the Periodic table Mixed Groups Group 13 – Boron Group Group 14 – Carbon Group Group 15 – Nitrogen Group Group 16 – Oxygen Group

Other Groupings The Inner Transition Metals The Lanthanides (atomic numbers of 58-71) The Actinides (atomic numbers of )

You need to know the following elements and their symbols #1-36, 47, 50, 53, 54, 78-80, 82, 86, 92