[2014] Drew Joseph Nardone: Alkaline Earth Metals

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[2014] Drew Joseph Nardone: Alkaline Earth Metals

Alkaline Earth Metals

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Alkaline Earth Metals:Alkaline earth metals are the 2nd group of metals on the periodic table, and consist of beryllium, magnesium, calcium, strontium, barium, and radium. Each atom has 2 valence electrons and are found in nature, but only in compounds, not their regular forms. All the alkaline earth metals are fairly reactive and react with halogens to form compounds called halides. They also all, except beryllium, react with water. Calcium and magnesium are both needed in order for living things to survive.Did you know:Alkaline earth metals burn with different colors. Beryllium (white), magnesium (bright white), calcium (red), strontium (crimson), barium (green), and radium (red)

Beryllium is the 4th element on the periodic table. It is a non-magnetic, hard, and brittle metal, that has a grayish-white surface. Its melting point is 1,287 degrees Celcius and boiling point is 2,500 degrees Celcius. Beryllium is most commonly used as an alloy with copper, and is used to make springs, instruments like tambourines and triangles, and even some bullets.

Radium is the 88th element on the periodic table. It is a soft, very radioactive substance. Radium's melting point is 700 degrees Celcius and has a boiling point of 1,737 degrees Celcius. Radium is luminous, and glows in the dark. It was once used as a paint. They painted the numbers on clocks with the paint, and this made the numbers glow in the dark. The radioactivity given off was unhealthy, and the paint is no longer used. In some cases, Radium is used as a treatment for cancer.

Calcium is the 20th element on the periodic table. Calcium is a relatively soft metal, and can be pressed into sheets, bent, or cut. It has a melting point of 851 degrees Celcius and a boiling boint of 1,482 degrees Celcius. Calcium is commonly used to produce a material that we have in our bones and teeth, and is vital for human health. Calcium is also used in things like alloys and soil.

Beryllium

Radium

Calcium

By: Drew Nardone and Max Soloman


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