The noble gases are a group of chemicals that share a particular range of characteristics, such as monatomic, odorless, and colorless under normal conditions. They can not be frozen, and they have very high boiling points and can only be liquefied under pressure massive. Noble gases, above all, have very low chemical reactivity, that is, little combinability with other elements of the periodic table. For that reason, they have also received the name of inert gases or rare gases, although both terms are not recommended today. From this content, you will know what are the noble gases?
Getting know: What are the noble gases?
There are few substances derive from these gases, but few industrial and practical uses.For example, helium replaces hydrogen in balloons and airships. Since it much less-flammable gas, and liquid helium and neon used in cryogenic processes. Argon is also borrowed as a filler for incandescent bulbs, taking advantage of its low flammability and other lighting mechanisms.
Examples of noble gases
The noble gases are only seven, so there can be no more than these specific examples:
The 2nd most enough component in the universe. Since the nuclear reactions of the stars produce it from the fusion of hydrogen, it well known for its properties of alteration of the human voice when inhaled. Since sound spreads much more swiftly through helium than air and it is much lighter than air. So it always tends to rise and often used to fill decorative balloons.
Argon (Ar) .
This element widely used in industry to manufacture highly reactive materials, operating as an insulator or inhibitor. Like neon and helium, it is using to obtain certain types of lasers and semiconductor industries.
Despite being an inert gas, it is known to react with fluorine and in the formation of clathrates with water and other substances. Since it has a specific electronegativity value. it is one of the elements produced during the fission of the uranium atom. So there are six stable and seventeen radioactive isotopes.
Also very sufficient in the known universe, it is the element that gives the reddish tone in the light of fluorescent lamps. It was using in neon tube lighting, and that is why it gave it its name (even though different gases are using for other colors). It is also part of the gases present in television tubes.
A very heavy gas, present only in traces on the earth’s surface, the first noble gas to synthesized. It is related to manufacture lamps and light fixtures (such as in movies or car headlights). As well as specific lasers and as a general anesthetic, like krypton.
Product of the breakdown of components such as Radium or Actinium (in that case, it is known as Actinon). It is a radioactive inert gas, the most stable version of a half-life of 3.8 days before becoming Polonium. It is a dangerous element, and its use is limit as it is highly carcinogenic.
what are the noble gases and the History of noble gas?
Most of these chemical elements were discovered around the 19th century, when Pierre Janssen and Joseph Norman Lockyer examined the sun. He discovered helium, whose name comes from the Greek word for the star king.
Later, krypton, neon, and argon were discovered from the chemical study of air. Towards the end of the 19th century, Lord Rayleigh and William Ramsay postulated the noble case’s existence. Which earned them capable of the Nobel Prize in Physics and Chemistry as well.
It took until the 20th century for its industrial production to begin to take place on a large scale, as more of its particularities and uses were discovering.
what are the noble gases?
When discovered, these elements calling inert gases or rare gases, as they thought to chemically passive and rare in the universe.
Both things turned out to be false, so the use of “noble gases” is preferred, a translation of the German term with which Hugo Erdmann baptized them in 1898: Edelgas.
This name is borrowed from the “noble metals” such as gold , whose chemical behavior also tends towards low reactivity, that is, to remain pure.
Electronic configuration of noble gases
Their electronic configuration can explain the reason why noble gases are not very reactive. Since their outermost layer or valence layer is always complete , without the need to borrow electrons. That is, its outer layer of the electromagnetic field is so stable that the element tends not to react with others except in particular cases.
The behavior of noble gas
As we have said, noble gases are not very reactive, that is, little given to the unions between atoms. This means that they do not react much with other substances. They do not even respond between atoms of the same gas as they do with diatomic gases such as oxygen (O 2 ) or hydrogen (H 2 ). Which form molecules. Helium and neon, exceptionally inert, followed by argon, krypton, xenon, and radon.
The abnormalities to this law are few and generally involve the heavier noble gases, such as xenon or radon, capable of forming compounds with fluorine and oxygen, such as krypton hexafluoride (KrF 6 ) or acid. Xenic (H 2 X 4 ).
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