1. Alkaline Earth Metals

2. Alkaline Earth Metal Elements

3. Elements Continued

4. Similar Properties All In the second row Don’t occur as free elements
Most commonly are found occurring as the carbonates, phosphates silicates, and sulfates
Flame test can be used to determine if the element is an Alkaline Metal
Atoms loose 2 electrons
Most are insoluble or slightly soluble
Very Reactive

5. Chemical Properties All but Beryllium form oxides at room temperature
Magnesium reduces carbon dioxide
Strontium, Calcium, barium when put in water react to form hydroxides

6. Physical Properties
Have higher melting points, are harder and are more dense than Potassium and Sodium
When put in flame:
Mg:White
Ca:Dark red
Sr: Crimson
Ba: light green
2 valence electrons
Metallic and Ductile
Shiny silvery white
Malleable

7. Natural Occurrences Found in earth’s crust Rock Structures
Magnesium is found in Carmelite, magnetite and dolomite. Extracted from sea water
Calcium is found in found in chalk, limestone, gypsum and anhydrite

8. Uses- Strontium
Fireworks
Flares
To create a crimson Color

9. Uses- Radium
Treating Cancer

10. Uses- Barium Medical Applications Glass making Rat poison
Making Rubber

11. Magnesium- Uses Airplanes Missiles Flares Bombs Car Engines Medicine
Computers

12. Calcium- Uses Builds Strong bones and teeth Used in Milk
Used to make plaster

13. Beryllium- Uses
Spacecraft
Aircraft
Missiles
X-rays

14. Quiz 1.) Choose Two characteristics of Alkaline Earth Metals:
A. Have a silvery luster C. Glow yellow in the dark
B. Are Ductile D. Are not Malleable
2.) Two of the six metals in this group are:
Magnesium C. Gold
Argon D. Radium

15. Quiz Continued 3.) A flare is made out of what element in this group?
Magnesium C. Radium
Calcium D. Beryllium
4.) What can you make from Alkaline Earth Metals?
Paper C. Fireworks
Mold D. Plastic

16. Last Question!
5.)What test can be used to identify three of the six alkaline earth metals?
Gold foil test C. Density test
Flame test D. Boiling test