37+ Aesthetic Neon Dark Black Wallpapers HD Background


Neon is a chemical element with the atomic number 10 and the symbol Ne. It’s classified as a noble gas. Under normal conditions, neon is a colorless, odorless, inert monatomic gas with a density of roughly two-thirds that of air. It was found in 1898 as one among the three uncommon inert elements left in dry air after nitrogen, oxygen, argon, and carbon dioxide were removed (together with krypton and xenon). Neon was the second of these three rare gases to be found, and its brilliant red emission spectrum quickly identified it as a new element. The word neon comes from the Greek word o, which is the neuter singular form of (neos), which means new. There are no uncharged neon compounds known since neon is chemically inert. Ionic molecules, molecules bound together by van der Waals forces, and clathrates are among the known neon compounds.

The alpha-capture fusion process in stars produces huge quantities of neon during cosmic nucleogenesis of the elements. Although neon is a common element in the universe and solar system (it is the fifth most abundant element in the cosmos after hydrogen, helium, oxygen, and carbon), it is extremely uncommon on Earth. It makes up around 18.2 parts per million (ppm) of air by volume (about the same as the molecular or mole fraction) and a lesser percentage of the Earth’s crust. Because neon is very volatile and does not create any compounds to attach it to solids, it is relatively scarce on Earth and the inner (terrestrial) planets. As a result, it escaped from the planetesimals in the early Solar System, thanks to the warmth of the freshly lit Sun. Even Jupiter’s outer atmosphere has significant neon depletion, but for a different reason.

When neon is employed in low-voltage neon glow lamps, high-voltage discharge tubes, and neon advertising signs, it emits a characteristic reddish-orange glow. The well-known red light of helium–neon lasers is caused by the red emission line from neon. Neon is employed in plasma tubes and as a refrigerant, although it has few other commercial applications. Fractional distillation of liquid air is used to extract it economically. Air is significantly more costly than helium because it is the sole supply.

Neon Wallpapers HD, Images Background, Pictures

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