Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

 Choose One Interactives Home Math Interactives -Geometry 3D Shapes -Math in Daily Life -Metric Conversions -Statistics Language Interactives -Elements of a Story -Historical and Cultural -Literature -Spelling Bee Arts -Cinema History Interactives -Collapse -Middle Ages -Renaissance -U.S. History Map Science Interactives -Amusement Park Physics -DNA -Dynamic Earth -Ecology Lab -Garbage -Periodic Table -Rock Cycle -Volcanoes -Weather

# What's In the Box :

## Groups

 Chapter Pages ------------- 1 - Periods 2 - Groups 3 - Atomic Number 4 - Symbol 5 - Relative Mass Activity: Which Doesn't Belong Tool: Interactive Periodic Table
 Let's look at the table another way. There are 18 vertical columns of varying length going across the table. These columns are commonly known as groups, or families of elements. The groups are numbered according to several different conventions, but the most commonly accepted method is the IUPAC (International Union of Pure and Applied Chemistry) system, which labels the groups from left to right with numbers 1 through 18. This is the system we will be using in this Web site. The numbers 1 through 18 are found above the top row of the table for easy reference. We will be looking at some of the groups of the periodic table in more detail later. So that covers columns and rows. What about individual elements? For that, we have atomic numbers.
 Next: Atomic Number