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The Alkaline Earth Metals

The Alkaline Earth Metals. By Michael Rollison, Kimberly Foster, and Diane Marchunt. Beryllium. Abbreviation: Be Atomic Number: 4 Mass: 9.012182 Melting Point (Degrees C): 1278.5 Boiling Point (Degrees C): 2467 Density (g/cm3): 1.85. Continued Beryllium.

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The Alkaline Earth Metals

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  1. The Alkaline Earth Metals By Michael Rollison, Kimberly Foster, and Diane Marchunt

  2. Beryllium • Abbreviation: Be • Atomic Number: 4 • Mass: 9.012182 • Melting Point (Degrees C): 1278.5 • Boiling Point (Degrees C): 2467 • Density (g/cm3): 1.85

  3. Continued Beryllium • Interesting Facts: Beryllium is used in specialty alloys such as spring metal in which it increases toughness, was once known as glucinium because of its sweet taste which is toxic, and the chief mineral source of beryllium is also the same material of which emeralds are formed and therefore creates a green metallic color.

  4. Magnesium • Abbreviation: Mg • Atomic Number: 12 • Mass: 24.3050 • Melting Point (degrees C): 649 • Boiling Point (degrees C): 1090 • Density (g/cm3): 1.74

  5. Continued Magnesium • Interesting Facts: Reacts with hot water and acids and is used to manufacture light-weight mechanical parts. It’s an important nutritional element in trace amounts.

  6. Calcium • Abbreviation: Ca • Atomic Number: 20 • Mass: 40.078 • Melting Point (degrees C): 839.2 • Boiling Point (degrees C): 1484 • Density (g/cm3): 1.54

  7. Continued Calcium • Interesting Facts: Calcium is the fifth most abundant element in the earth’s crust, is biologically important to the foundation of bones and teeth, and Calcium is fairly reactive in room temperatures and it slowly oxidizes the air becoming encrusted with CaO (Calcium+Oxygen) and CaCO3 (Calcium Carbonate).

  8. Strontium • Abbreviation: Sr • Atomic Number: 38 • Mass: 87.62 • Melting Point (degrees C): 769 • Boiling Point (degrees C): 1384 • Density (g/cm3): 2.6

  9. Continued Strontium • Interesting Facts: Strontium-90 is similar to Calcium, therefore its dangerous because it can take up the calcium spot in your bones. Strontium is malleable, has an extreme reaction with water to produce Hydrogen (H) gas, and it has the same relative abundance as Carbon and Sulfur but doesn’t occur in a pure form.

  10. Barium • Abbreviation: Ba • Atomic Number: 56 • Mass: 137.327 • Melting Point (degrees C): 725 • Boiling Point (degrees C): 1640 • Density (g/cm3): 3.51

  11. Continued Barium • Interesting Facts: Also reacts vigorously with water to produce Hydrogen gas (like Strontium), is often stored in oil, doesn’t occur in a pure form but can commonly be found as a sulfate or carbonate, and Barium compounds (TOXIC!!!) are also useful in pyrotechnic devices where they give off a green color.

  12. Radium • Abbreviation: Ra • Atomic Number: 88 • Mass: 226 • Melting Point (degrees C): 700 • Boiling Point (degrees C): 1140 • Density (g/cm3): 5

  13. Continued Radium • Interesting Facts: All radium isotopes are radioactive and luminescent, it reacts with oxygen and water, used to be used as a watch dial and was also used as an early treatment for cancer until they were replaced with safer alternatives. Being around radium for to long cause irreparable damages and it was used in paint during WWI which caused 40 deaths.

  14. Work Cited • http://www.3rd1000.com/elements/alkaline.htm • Textbook • http://www.qsl.net/ve3bdb/radiumpic.html • http://www.carondelet.pvt.k12.ca.us/Family/Science/AEM/Pictures/berylliumrock.jpg • http://z.about.com/d/chemistry/1/G/Z/_/magnesium.jpg • http://periodictable.com/Samples/038.5/s9s.JPG • http://periodictable.com/Samples/056.1/s9s.JPG • http://periodictable.com/Samples/056.1/s9s.JPG

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