It was discovered in 1894 and it was Argon.
In 1785 Henry Cavendish, an English chemist and physicist, found that air contains a small proportion (slightly less than 1 percent) of a substance that is chemically less active than nitrogen. A century later Lord Rayleigh, an English physicist, isolated from the air a gas that he thought was pure nitrogen, but he found that it was denser than nitrogen that had been prepared by liberating it from its compounds. He reasoned that his aerial nitrogen must contain a small amount of a denser gas. In 1894, Sir William Ramsay, a Scottish chemist, collaborated with Rayleigh in isolating this gas, which proved to be a new element---argon.
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Mendeleev couldn't predict the existence of noble gases because they are inert and do not readily form compounds with other elements. Mendeleev's periodic table was based on the properties of elements and their compounds, and since noble gases do not readily form compounds, they did not fit into his classification scheme.
Strutt and Ramsey discovered the noble gases, which include helium, neon, argon, krypton, xenon, and radon. These elements are characterized by their low reactivity and stable electron configurations. Their discovery was a significant contribution to the periodic table of elements.
Generally, the least reactive elements are the noble gases.
The noble gases were not included in the original periodic table because they were not discovered until the late 19th century. Once they were discovered, they were added to the periodic table as a separate group due to their unique chemical properties and lack of reactivity with other elements.
No. noble gases are group VIIIA or group 18 elements
Mendeleev couldn't predict the existence of noble gases because they are inert and do not readily form compounds with other elements. Mendeleev's periodic table was based on the properties of elements and their compounds, and since noble gases do not readily form compounds, they did not fit into his classification scheme.
Strutt and Ramsey discovered the noble gases, which include helium, neon, argon, krypton, xenon, and radon. These elements are characterized by their low reactivity and stable electron configurations. Their discovery was a significant contribution to the periodic table of elements.
The Noble gases were known as inert gases because it was believed that they were completely unreactive. This is no longer true as scientists have discovered compounds containing noble gas elements.
Group 17 elements are called halogens, which include fluorine, chlorine, bromine, iodine, and astatine. Group 18 elements are called noble gases, which include helium, neon, argon, krypton, xenon, and radon.
Generally, the least reactive elements are the noble gases.
The noble gases were not included in the original periodic table because they were not discovered until the late 19th century. Once they were discovered, they were added to the periodic table as a separate group due to their unique chemical properties and lack of reactivity with other elements.
Noble gases exist in nature in very low concentration and are very unreactive. These prevented their discovery earlier.
No. noble gases are group VIIIA or group 18 elements
All noble gases elements are gases.
Noble gases.
The class of elements that includes all elements that are gases at room temperature is the noble gases. These are located in Group 18 of the periodic table and include elements such as helium, neon, argon, krypton, xenon, and radon.
William Ramsay discovered the noble gases while investigating the components of atmospheric air in the late 19th century. In 1894, he identified argon as the first noble gas when he isolated it from nitrogen and oxygen in the atmosphere. Following this, he discovered other noble gases, including helium, neon, krypton, and xenon, which helped establish the group of elements characterized by their lack of chemical reactivity. Ramsay's work significantly advanced the understanding of the periodic table and the nature of inert gases.