Current researchĪstronomers are studying the neon ratios in the sun to better understand not only our own star but also other stars in our universe. As the ionized atoms recapture their electrons to become neutral, visible light is released which gives the CCFL signs their colored glow. The current ionizes the atoms causing the tube to be filled with free electrons. Neon lights, also known as cold cathode fluorescent lamps (CCFL), work when electrodes on each end of a vacuum tube filled with neon or other fluorescing gas are subjected to an alternating current, according to the Edison Tech Center. Today, the majority of the lights you see in many places, such as on the Las Vegas strip, are made from mercury and argon and colored with phosphors. Other colors are created by using a variety of other gases, such as argon, mercury, helium, krypton and xenon, according to the Edison Tech Center. Argon makes blue light, and neon makes the clear orange-red that is familiar in neon signs, said Bill Concannon, a neon-sign artist and owner of Aargon Neon, a sign shop in Crockett, California. First developed by French engineer Georges Claude in 1902, neon lights create light by applying electricity to neon or argon in a sealed glass tube. The most common use of the gas is in neon signs, which have a century-long history. When liquefied, neon is an important cryogenic refrigerant that has more than 40 times the refrigerating capacity per volume than liquid helium and more than three times that of liquid hydrogen, according to the Royal Society of Chemistry.The discovery of the neon in these disks helps astronomers track the gas content around the young stars during different stages of their development in order to better understand how planets form. According to the Jet Propulsion Laboratory, neon has been discovered in the planet-forming disks around young stars.Death may be caused by errors in judgment, confusion, or being unconscious. When inhaled, it may cause dizziness, nausea, vomiting and loss of consciousness. While generally inert and nontoxic, neon is also known as a simple asphyxiant, according to Lenntech.There are several researchers, with articles published in Nature and Foundations of Chemistry, who want to rearrange the Periodic Table to move helium next to hydrogen and promote neon to be the lightest of the noble gases due to properties of helium and the number of electrons in its outer shell.Due to its relative inertness, neon does not form any known stable compounds in nature, according to Chemicool.All noble gases conduct electricity, light up when a current runs through them, and are odorless, colorless and monatomic (exist as individual atoms). These are the most stable and least reactive elements due to having full valence shells (the outer shell has the max number of electrons, two for helium, eight for the rest). Neon, along with helium, argon, krypton and xenon, make up the group known as noble gases.Neon has the smallest temperature range (2.6 degrees C or 4.7 degrees F) for which it is a liquid, according to Chemicool.According to Minerals Education Coalition, neon is primarily obtained from liquefying air.Neon is created in large mass stars when the internal pressure of the star is great enough to fuse carbon atoms into neon atoms, according to Berkeley Lab.In Earth's atmosphere, neon only composes about 0.0018 percent, according to Chemicool.Neon is the fourth most abundant element in the universe, according to the Jefferson Laboratory.Neon (Image credit: general-fmv, Andrei Marincas Shutterstock) Who knew? From those elements' places on the Periodic Table, he deduced that there was a yet unknown element between the two noble gases. Ramsay had previously discovered argon in 1894 and was the first to isolate helium in 1895. Most common isotopes: Ne-20 (90.48 percent natural abundance), Ne-22 (9.25 percent natural abundance), Ne-21 (0.27 percent natural abundance)Ĭhemists William Ramsay of Scotland and Morris Travers of England discovered neon in 1898, according to Chemicool.Number of isotopes (atoms of the same element with a different number of neutrons): 19.Boiling point: minus 410.94 degrees F (minus 246.08 degrees C).Melting point: minus 415.46 degrees Fahrenheit (minus 248.59 degrees Celsius).Density: 0.0008999 grams per cubic centimeter.Atomic weight (average mass of the atom): 20.1797. Atomic symbol (on the Periodic Table of Elements): Ne.Atomic number (number of protons in the nucleus): 10.Under certain laboratory conditions, neon can form a compound with fluorine, but is otherwise nonreactive, according to the Thomas Jefferson National Accelerator Laboratory. Like its noble gas comrades, neon is odorless and colorless.
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