#Ne element symbol full#
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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