Isotope Protons Neutrons Electrons
             Ar-36 36 4 36
             Ar-37 37 3 37
             Ar-38 38 2 38
             Ar-39 39 1 39
             Boiling Point: -185.7 °C, 87.3 K, -302.3 °F
             Melting Point: -189.5 °C, 83.85 K, -308.74 °F
             Physical And Chemical Properties: color less, odor less, crystal structure: cubic, has about the same solubility as oxygen, heat of vaporization: 6.447kJ/mol
             How You Get Argon: Argon is isolated by removing nitrogen, oxygen, carbon dioxide and water form the air.
             Where Argon is Found: Argon makes up 1% of the air.
             Origin of the Name and Symbol: Argon comes form the Latin word argon and so does the symbol.
             Uses: Argon is used for lighting. Mainly in neon lights. It provides an inert atmosphere. Also it is used in "Geiger counters".
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