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

# Groups :

## Alkaline Earth Metals

 Chapter Pages ------------- 1 - Overview 2 - Alkali Metals 3 - Alkaline Earth Metals 4 - Noble Gases 5 - Halogens 6 - Oxygen Family 7 - Nitrogen Family 8 - Carbon Family 9 - Boron Family 10 - Transition Metals Activity: Ionic Bonding Tool: Interactive Periodic Table
 About the Group The second column of elements from the left of the periodic table is known as the Group 2 or alkaline earth metals. It consists of beryllium, magnesium, calcium, strontium, barium, and radium. Originally the term "alkaline earths" referred only to the oxides of calcium, strontium, and barium. The definition was later broadened to include the entire Group 2 family of elements. This group commonly loses the two s orbital electrons found in their outermost energy level. The remaining ion then has the desired complete octet of s and p orbital electrons in its outermost energy level. Chemical Properties One of the signature properties of this group of elements is that they become increasingly soluble with a decrease in temperature. This is usually true only for gases. Just imagine stirring sugar into a glass of tea. If you want to make really sweet tea, you need to add the sugar before adding the ice. Hot tea will dissolve more sugar in the same volume than cold tea. If the sugar were calcium, more calcium would dissolve into the liquid as you added the ice.
 Next: Noble Gases