why the noble gases are placed in a separate group?
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Noble gases are placed in a separate group of the periodic table because they are inert elements. They are unreactive as their valence shells are completely filled with electrons. Their properties are different when compared to all the other elements.
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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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Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.
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All of the elements in Group Zero are noble gases. The list includes helium, neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). Don't think that, because these elements don't like to react, we don't use them.
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Nitrogen (N2) might be considered an inert gas, but it is not a noble gas. The noble gases are another family of elements, and all of them are located in the far right column of the periodic table.
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The noble gases of Group 8A (He, Ne, Ar, Kr, Xe, and Rn) are all gases at room temperature (as the name of the group implies); since they are all unreactive, monatomic elements, their boiling points are extremely low.
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Noble Gases 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. This is a reasonable belief because the noble gases have a complete octet, making them very stable and unlikely to gain or lose any electrons.
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1 Answer. A stable electron configuration for the representative or main group elements is a noble gas configuration. ... The noble gases are in Group 18 (VIIIA). Atoms of the representative elements achieve a noble gas configuration by gaining or losing electrons and becoming ions, or by sharing electrons.
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The atoms of noble gases already have complete outer shells, so they have no tendency to lose, gain, or share electrons. This is why the noble gases are inert and do not take part in chemical reactions.
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The number of shells depends on the element. ... We call these reactive elements, because these atoms really like to follow the buddy system and form bonds with other atoms. Noble gases, however, don't have this problem. Their outer shells are filled to the max, so they don't need to bond or react with any other atoms.
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The noble gases are a group of chemical elements that make up Group 18 on the periodic table. These gases all have similar properties under standard conditions: they are all odorless, colorless, monatomic gases with very low chemical reactivity.
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The noble gases (historically also the inert gases; sometimes referred to as aerogens) make up a class of chemical elements with similar properties; under standard conditions, they are all odourless, colourless, monatomic gases with very low chemical reactivity.
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As a result of this, due to the completely filled electronic configuration, the electronic repulsion in the noble gases are high. So the electrons tend to be away from each other to minimise this repuksion, leading to an increased atomic size of the noble gases.
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Noble gas. The noble gases are the chemical elements in group 18 of the periodic table. They are the most stable due to having the maximum number of valence electrons their outer shell can hold. Therefore, they rarely react with other elements since they are already stable.
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All the noble gas elements have zero valency and placed in zero group with similar chemical properties. ... They are placed in a separate group due to their similarity in valence shell electron configuration i.e. they are all filled up.
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Purified argon and nitrogen gases are most commonly used as inert gases due to their high natural abundance (78.3% N2, 1% Ar in air) and low relative cost. ... The group 18 elements include helium, neon, argon, krypton, xenon and radon. They are referred to as noble gases or inert gases.
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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.