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Term Papers on Argon
Argon Argon is an inert gaseous element. It is the third most prevalent noble gas in the earth’s atmosphere. It is present to the extent of .94% by volume. It’s symbol is Ar. The name Argon came from the Greek word "argos" meaning "inactive". Argon is colorless and odorless. It is in group 18 on the periodic table. It’s atomic number is 18 and it’s atomic weight is 39,948 U. Argon melts at -189.3 degrees Celsius and boils at -185.86 degrees Celsius. Argon is the third lowest in weight of the Nobel gases. Naturally occurring Argon is composed of three isotopes. It has a gas density of 1.7837 g/l at 0 degrees Celsius. Argon has an ionization energy 363 kcal/mol of atoms.. Heat of vaporization for Argon is 6.447 kJ/mole. Heat of fusion for Argon is 1.188 KJ/Mol. Specific heat is .52 J/GK. The oxide is unknown. Argon is a nonmetal. Argon doesn’t appear to form true compounds however it is known to form a hydrate. Some ions have been detected spectroscopically. For years, chemists thou! ght that Nobel gases would not form chemical combinations with other elements and compounds. They thought this because Nobel gas has it’s outer most shell are completely filled with electrons. However, this is not true. When the pressure and temperature is increased, the elements can be forced to form bonds. Some examples are Krypton, Xenon, and Radon. Compounds with Argon, Helium, Neon are not likely to form because the electrons are closely bounded to their nuclei. Argon’s presence in the air was first suggested by Henry Cavendish in 1785. It, however, was first separated by Lord Raleigh and Sir William Ramsay in 1894. Sir William Ramsay was a British chemist. He is known best for his isolation of elem... This is ONLY a preview of the article. If you would like to view the entire document, you must subscribe to Digital Term Papers. Please register below now! Digital Term Papers has over 63,000 essays, term papers, and book notes online. Many paper sites will charge you hundreds of dollars for a single paper. Digital Term Papers only charges $14.95 for a one month membership with instant account activation! Don't waste anymore time! Join NOW!!!
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