Alkaline+Earth+Metals+by+Erin,+Travis,+and+Chris

media type="youtube" key="nEv8ZAD2AVk" height="385" width="640" First off this is the second group on the periodic table They are metals They have a very high reactivity Their natural state is solid They are shiny, relatively soft, and white or silvery in color They are used in alot of dietary supplements They are never found in free nature They remain solids in fire because they melt at such high temperatures
 * Welcome to our wikipage on the Alkaline Earth Metals.**
 * Here are some interesting facts about this group:**

By: Erin Kommes** Element symbol- Mg This element was named aftter distinct Magneisia in Thessaly, Greece. It was discoverd by Josheph Black in 1755. The atomic number is 12 and its mass is 24.3050 Magnesium has a melting point of 650 degrees celsius and a boiling point of 1090 degrees celsius Its valence number is 2 and it is most ubundant in the Earths Crust. -Helps maintain normal muscle and nerve functions -Used in jet-enigin parts, and missles -Used in bombs, signals, and flares - 8th most ubundant element in the earths crust -Only 1% of magnesium is found in blood -An adult human body contains about 24 grams of magnesium -The daily requirement of magnesium for an adult male is 429 mg -Found in fireworks
 * Magnesium
 * Uses**
 * Interesting Facts**

Element symbol:Ca It was discovered by Sir Humphry Davy in 1808 Atomic Number:20 Atomic Mass:40 Melting point:839 degrees celsius Boiling Point:1484 degrees celsius -Dehydrating oils -Alloying agent for aluminum -Found in shells -Was prepared as lime under Romans -As an element it is gray and silvery and rather hard -5th most ubundant element -Makes up more than 37% of the crust -In nature its not found as itself, but inside other things -Stalagnites and Stalagtites contain calcuim
 * Calcium**
 * By:** **Travis**
 * Uses**
 * Interesting Facts**

By: Chris** Element symbol:Sr This element was names after a scottish town of strontian It was discovered by A crawford in 1790 Atomic mass: 88 Atomic number: 38 Melting point: 769 degrees celsuis Boiling point: 1384 degrees celsius Valence number:2 Location on earth: crust -Special glass for T.V. -Nuclear waste -Fireworks -Can mimic its way into our bodies -Very much like calcium -used in toothpaste -greater opitcal dispersion then diamond -used for systems for Nuclear Auxillary Power
 * Strontium
 * Uses**
 * Interesting** **Facts**

Winter, Mark. "Web Elements". University of Sheffield. April 11, 2010 <[]>.

Kapes, Beth. "Healthline". Gale Encyclopedia of Alternative Medicine. April 11, 2010 <[]>. "RSC". ChemicalSoc. April 11, 2010 [].

Hsu, David. "Strontium Element Facts". April 12, 2010 <[]>. "Facts About Strontium". April 12, 2010 <[]>.

Marsden, Steve. "The Alkali Metals". Chemistry Resources for Students and Teachers. April 9, 2010 .www.chemtopics.com/elements/alkali/alkali.htm>. "Chemistry and physics". enotes.com. April, 9 2010 .