![]() Neon is a practically inert gas, so like all rare gases, it does not react with other elements. Its atomic number is 10 so it has 10 protons. Neon has an atomic mass of 20.1797 g / mol. Ionization energy of Neon is Eo = 2081 kJ / mol. The energy spent on the separation of an electron from an atom is called the ionization energy and is denoted by Eo. We determine quantum numbers by the last electron in the configuration for the Ne atom, these quantum numbers have the value N = 2, L = 1, M l = 1, M s = -1 Neon atoms in compounds have an oxidation state of 0. The oxidation state is the conditional charge of an atom in a compound. Neon, like all other rare gases (Helium, Argon, Krypton, Xenon, Radon and Oganesson), has an electronic structure/configuration which gives it stability that does not allow it to form any kind of ions. It is only present in very small quantities in the air, since its low density pushes it to rise and is lost in space. This in fact makes any covalent bond unnecessary. Its chemical inertia is linked to the particular stability conferred on it by its electronic configuration. It is the basic property of chemical species belonging to the family of noble gases. Neon only exists as a monatomic gas, it does not form a molecule and does not react. Neon is the second member of the rare gas family and, like all the elements of this family, it occurs in the form of a monatomic gas (= a single atom Ne) and is difficult to detect. Neon is the fourth most abundant element in the universe, only 0.0018% of the Earth's atmosphere is neon. They have mass numbers between A = 16 and A = 34.Īmong them, the isotope with mass number A = 24 is the one with the longest half-life, estimated at 3.38 minutes.Īll the others have half-lives of less than a minute, or even less than a second for many of them. The sixteen other isotopes of Neon are therefore radioactive isotopes: they are radioisotopes of Neon. The isotope of mass number A = 22, representing about 9% of the abundance of Neon in nature. The isotope with mass number A = 21, largely in the minority compared to the other two (0.27%). ![]() The isotope of mass number A = 20, which is the most abundant of the three, representing a little more than 90% of the abundance of Neon. ![]() Among the nineteen isotopes of Neon identified to date, three of them are stable and present in nature: Neon has 10 electrons, we can fill the electron shells as below:ġ9 isotopes of Neon are known today. You can also write Neon electron configuration in abbreviated form i.e. The neon atom and C -4, N -3, O -2, F -1, Na +1, Mg +2, Al +3, Si +4, P +5, S +6 have the same electronic configuration. The electronic configuration of Neon is Ne: 1s 2 2s 2 2p 6. William Ramsay then used this process to liquefy air and subjected it to a distillation, which enabled him to discover not only Neon but also Krypton and Xenon. The Linde-Hampson gas liquefaction process was developed in 1895. In 1898 Neon was discovered by a pair of British chemists: William Ramsay and his assistant Morris Travers.Īfter his discovery of Argon, William Ramsay suspected the existence of elements of the same family, which are also chemically inert and therefore very difficult to detect. As it has 10 electrons then Its electronic structure is therefore as follows: (K) 2 (L) 8.īelow we are going to cover the properties & electronic configuration of Neon gas as well as its application. Neon belongs to the family of noble gases. In the periodic table, it is located in the second period, in the eighteenth column. This name would have been suggested to its discoverer, William Ramsay, by his thirteen year old son, who asked him for the name of this "new" gas. The word "Neon" comes from the Greek word "Neos" which means "new". The Neon is a chemical element (gas) with an atomic symbol Ne and atomic number 10, it has a molar mass equal to 20.2 g / mol.
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