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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.

Which element is a noble gas?

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).

Why is it called a noble gas?

Why Are Noble Gases Called Noble? The term “noble gas” comes from a translation of the German word Edelgas, which means noble gas. German chemist Hugo Erdmann coined the phrase in 1898. Like a nobleman might consider it undignified to associate with commoners, noble gases tend not to react with other elements.

What are noble gases Class 9?

There are some elements which do not combine with other elements. These elements are : Helium,Neon, Argon, Krypton, Xenon and Radon. They are known as noble gases or inert gases because they do not react with other elements to form compounds.

What do noble gases do?

The noble gases are used to form inert atmospheres, typically for arc welding, to protect specimens, and to deter chemical reactions. The elements are used in lamps, such as neon lights and krypton headlamps, and in lasers. Helium is used in balloons, for deep-sea diving air tanks, and to cool superconducting magnets.

What is a noble gas simple definition?

Definition of noble gas : any of a group of rare gases that include helium, neon, argon, krypton, xenon, and usually radon and that exhibit great stability and extremely low reaction rates. — called also inert gas.

Why is a noble gas different from other elements?

Answer: the noble gases are the chemical elements in group 18 of the periodic table. they are the most stable due to having the maximum of valence electrons their outer shell can hold . therefore they rarely react with other elements since they are already stable .

Why are 18th group elements called noble gases?

The group 18 elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). These elements are non-reactive and are called noble gases as they have their outermost orbit complete. Due to stable electronic configuration they hardly react with other elements.

What are noble gases 12?

Noble gases are a group of chemical elements with similar properties. They are all odorless, colorless monatomic gases and have little chemical reactivity under normal conditions. Helium, neon, argon, krypton, xenon, and radon are noble gases and are classified by density.

What are noble gases 7?

The noble gases, also known as the inert gases and the aerogens, are the elements that belong to group 18 of the modern periodic table. The elements that belong to this group are: Helium (He)