By Cavan, Quinn, Ashrut, Claire
Alkaline
Earth Metals
http://reich-chemistry.wikispaces.com/file/view/periodictable.gif/97927027/periodic-table.gif
What’s in Common?
• All the elements in the Alkaline Earth Metal
family have two valence electrons on their
outermost energy level.
http://images-of-elements.com/beryllium-3.jpg
Are the atoms reactive?
• Reactive - readily partaking in chemical
reactions
• Second most reactive family.
• 1. Sometimes bond with two halogen atoms.
For example, BeF2.
• 2. Might bond with an atom with six valence
electrons. For example, CaO (Calcium Oxide)
•
http://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Magnesium_crystals.jpg/250pxMagnesium_crystals.jpg
Physical Characteristics?
• Elements become increasingly soluble with
temperature decrease.
• Silver
• Slightly more dense than Alkali Metals
http://0.tqn.com/d/chemistry/1/0/w/3/1/Calcium_1.jpg
Metals, Nonmetals, or Metalloids?
• They are metals because they are a gray, shiny
color and conduct electricity well.
•
http://www.theodoregray.com/periodictabledisplay/Samples/038.2/s13.JPGuct electricity well.
What are they used for?
• Radium- used to be in glow-in-the-dark paint
• Calcium- helps strengthen bones
• Lighter alkaline metals like magnesium are
important in animal and plant physiology.
•
http://www.webelements.com/_media/elements/element-pics-theo/56_Ba_1.jpg
The End
http://images-of-elements.com/radium.jpg
http://www.chem4kids.com/files/elem_families.html
http://elements-table.com/family/
http://www.learner.org/interactives/periodic/groups.html