why is noble gas neon?
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Neon, along with helium, argon, krypton and xenon, make up the group known as noble gases. 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).
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Noble gases are monoatomic, which means they exist as single atoms. This is because of their electronic stability. Unlike most common gases that exist as diatomic molecules like O2, N2, and Cl2, the noble gases exist as single atoms like He, Ne, Ar, i.e. they are monatomic molecules.
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Noble Gas. any of the gaseous elements helium, neon, argon, krypton, xenon, and radon, occupying Group 0 (18) of the periodic table. They were long believed to be totally unreactive but compounds of xenon, krypton, and radon are now known. Helium(H)
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How Noble Gases Form Compounds. Helium, neon, argon, krypton, xenon, radon have completed valence electron shells, so they are highly stable. The filled inner electron shells tend to provide a sort of electrical shielding, making it possible to ionize the outer electrons.
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Noble gases have large positive electron gain enthalpy. This is because the extra electron is placed in the next higher principal quantum energy levels. Thus, a highly unstable electronic configuration is produced.
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Noble Gases have a very stable electron configuration, therefore, they have the highest amount of ionization energy within their periods. It decreases down a family because electrons farther from the nucleus are easier to remove.
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Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.
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Noble gases are odorless, colorless, nonflammable, and monotonic gases that have low chemical reactivity. The full valence electron shells of these atoms make noble gases extremely stable and unlikely to form chemical bonds because they have little tendency to gain or lose electrons.
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The main properties of the noble gases include: they have low densities. they are inert, so they are not flammable.
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Noble gas compound. ... The heavier noble gases have more electron shells than the lighter ones. Hence, the outermost electrons are subject to a shielding effect from the inner electrons that makes them more easily ionized, since they are less strongly attracted to the positively charged nucleus.
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Noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).
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The noble gases are in Group 18 (8A). They are helium, neon, argon, krypton, xenon, and radon. They were once called inert gases because they were thought to be completely inert—unable to form compounds. ... Noble gases all have a complete octet (eight valence electrons), except for helium (which has only two electrons).
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Because of their uber-high stability, the noble gases are relatively unreactive. They have very high ionization energies and negligible electronegativities because they have no desire to gain or lose an electron.
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Neon is stable as it has a full octet or valence shell of 8 electrons. If you are in year 11 or beyond, this will change, but I assume that you are still touching the surface of chemistry and learning that all noble gases (last group on the periodic table) have a full valence electron and "are happy," thus stable.
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noble gas form compounds with oxygen and fluorine only because they are most electronegative elements. So they can ionise noble gases also.
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To figure out which Noble Gas an element is closest to, look at its atomic number. For example, the atomic number of the element Fluorine, F, is 9, which means that its closest Noble Gas is Neon, Ne.
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Helium (He), neon (Ne), and argon (Ar), as group 18 elements, have outer electron shells that are full or satisfy the octet rule. This makes them highly stable as single atoms. Because of their non-reactivity, they are called the inert gases or noble gases.