Neon Element in Periodic Table | Atomic Number Atomic Mass
Neon is an inert gas and it is in the 18th group of periodic table of elements. It is a chemical element with atomic number 10. The 18th group of periodic table of elements is meant for placing the symbols of all inert gases. Due to their stable electronic configuration, the elements have the least reactivity and hence the 18th group is also called zero group. Since they do not react easily participate in chemical reactions, they are also known as noble gases. Neon is a colourless, odourless and tasteless gas under normal conditions of temperature and pressure.
After helium, neon is the second lightest inert gas. Neon has three stable isotopes viz., 20Ne, 21Ne and 22Ne. The isotope 20Ne differs from the other isotopes 21Ne and 22Ne in the origin of formation. The latter two are found to be partly primordial and partly made by nuclear reactions between other nuclides with neutrons or other particles in the environment. But on the other hand, 20Ne is known to be neither nucleogenic nor radiogenic and it is considered as the chief primordial isotope formed out of nucleosynthesis in the stellar space, by fusion of helium and oxygen in the alpha process.
Uses Of Neon Element:
Neon gas is used in fluorescent bulbs to make them glow in bright reddish-orange light. Neon is used in vacuum tubes, lightning arresters, high voltage indicators, water meter tubes, television tubes and helium-neon lasers. It is also used as cryogenic refrigerant.
Neon Element Information:
Discovery year: 1898
Discovered by: William Ramsay & Morris Travers
Atomic number: 10
Relative atomic mass: 20.180
Electron configuration: [He] 2s2 2p6
Other elements in the same block:
Boron, Carbon, Nitrogen, Oxygen, Fluorine, Aluminium, Silicon, Phosphorus, Sulfur, Chlorine, Argon, Gallium, Germanium, Arsenic, Selenium, Bromine, Krypton, Indium, Tin, Antimony, Tellurium, Iodine, Xenon, Thallium, Lead, Bismuth, Polonium, Astatine, Radon, Nihonium, Flerovium, Moscovium, Livermorium, Tennessine and Oganesson are the same block elements.
Period: period 2
Other elements in the same period:
Group: group 18 (noble gases)
Other elements in the same group:
Other elements in the same orbital:
Key isotopes: 20Ne
Melting point: −248.59°C, −415.46°F, 24.56 K
Boiling point: −246.046°C, −410.883°F, 27.104 K
Element category: noble gas
Density (g cm−3): 0.000825
CAS number: 7440-01-9
Color: colorless gas
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