Alkaline Earth Metals Alkaline Earth Metal Elements Elements

Similar Properties • All In the second row • Atoms loose 2 electrons •

Chemical Properties • All but Beryllium form oxides at room temperature • Magnesium reduces

Physical Properties • Have higher melting points, are harder and are more dense than

Natural Occurrences • Found in earth’s crust • Rock Structures • Magnesium is found

Uses- Strontium • Fireworks • Flares • To create a crimson Color

Uses- Barium • • Medical Applications Glass making Rat poison Making Rubber

Magnesium- Uses • • Airplanes Missiles Flares Bombs Car Engines Medicine Computers

Calcium- Uses • Builds Strong bones and teeth • Used in Milk • Used

Beryllium- Uses • • Spacecraft Aircraft Missiles X-rays

Quiz • 1. ) Choose Two characteristics of Alkaline Earth Metals: A. Have a

Quiz Continued • A. B. 3. ) A flare is made out of what

Last Question! • 5. )What test can be used to identify three of the

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Alkaline Earth Metals

Alkaline Earth Metal Elements

Elements Continued

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

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

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

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 chalk, limestone, gypsum and anhydrite

Uses- Strontium • Fireworks • Flares • To create a crimson Color

Uses- Radium • Treating Cancer

Uses- Barium • • Medical Applications Glass making Rat poison Making Rubber

Magnesium- Uses • • Airplanes Missiles Flares Bombs Car Engines Medicine Computers

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

Beryllium- Uses • • Spacecraft Aircraft Missiles X-rays

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: A. Magnesium C. Gold B. Argon D. Radium

Quiz Continued • A. B. 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

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