Inert gas is not inert, but can accelerate the reaction, why is it called inert gas?

The inert gas here does not mean that it makes people unresponsive, but only that the composition of the gas is more special.

I think it's mainly because it's relatively small, so it's called inert gas, and it's not active.

Because these noble gases are difficult to participate in the reaction, they can change the speed of the reaction.

The biggest reason may be that they are more inert when they react with special substances.

Noble gases refer to the gas elementals corresponding to all group 0 elements on the periodic table.

At room temperature and pressure, they are all colorless and odorless monoatomic gases, which are difficult to carry out chemical reactions. There are 7 types of noble gases, which are helium (HE), neon (Ne), argon (AR), krypton (KR), xenon (XE), radon (RN, radioactive), (OG, radioactive, man-made element).

History of the discovery of noble gases:

In 1868, astronomers discovered a special yellow line d3 in the sun's spectrum, which was different from the two yellow lines d1 and d2 of sodium that had been known for a long time, thus predicting that there might be an unknown element in the sun. Later, this element was named "helium", which means "solar element".

More than 20 years later, Ramsey confirmed that helium is also present on Earth. In 1895, the American geologist Hillbrand observed that yttrium-uranium ore heated in sulfuric acid produced a gas that could not spontaneously ignite or support combustion. He thought the gas could be nitrogen or argon.

But no further research was carried out. Knowing of this experiment, Ramsey repeated it with yttrium-uranium ore to obtain a small amount of gas.

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Gases such as helium (He), neon (Ne), argon (Ar), krypton (Kr), and xenon (XE) are known as "lazy" and are called inert gases.

On August 13, British chemist Ramsay and physicist Rayleigh reported at a conference that they had discovered a new element with strange properties. This element exists in a gaseous state, and it is indifferent to any of the most reactive and powerful substances, hence the name argon, which means "lazy". Later, several elements were discovered, which also had similar properties, and they were like "hermits" of the elements, never chemically reacting with other elements.

What is the reason for this? It turns out that except for helium atoms, which have a stable structure of 2 electrons, the atoms of other gases have a stable structure of 8 electrons in the outermost shell. At that time, chemical theory believed that elements with such a structure could not undergo chemical reactions.

So, chemists conclude that it is impossible for noble gas elements to form compounds.

In the year, the young British chemist Bartlett accidentally obtained a dark red solid when he was conducting experiments on the reaction of platinum group metals and fluorine, and after analysis, he knew that it was a compound of hexafluoroplatinate oxygen (02ptf6), and saw from this compound the fact that the oxygen molecule that has reached the stable structure of 8 electrons can actually lose one electron and form a cation. Oxygen, on the other hand, is very difficult to lose electrons, and its first ionization energy (i.e., how difficult it is for an atom to lose electrons) is greater than the first ionization energy of xenon.

So, can the noble element xenon also form cations? Besides, platinum hexafluoride is a strong oxidizing agent, if platinum hexafluoride is combined with xenon, what will happen Batalet imitates the conditions and methods for synthesizing oxygen hexafluoroplatinate, and mixes platinum hexafluoride vapor with excess xenon at room temperature, and the result is an orange-yellow solid of xenon hexafluoroplatinate. This is the world's first noble gas compound.

Since then, xenon fluoride, chloride, and oxide have also been introduced, and now, there are hundreds of inert gas compounds such as hydrogen fluoride and argon difluoride.

The synthesis of noble gas compounds has given scientists another revelation: science is endless, and what is true today is likely to become a fallacy tomorrow. Only by having the courage to explore can we always stand on the side of truth.

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Analysis: Inert gas: also known as blunt gas, noble gas, precious gas [return]1

Blunt gases include: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (RN), all of which are colorless, odorless, and gaseous monoatomic molecules. In the periodic table, it is group 18 (group a), and the outer electrons have reached the hole combustion saturation, and the activity is very small.

2.General Generality:

1) Atomic weight, density, melting point, boiling point, and atomic radius increase with the increase of atomic order.

2) The free energy decreases as the atomic order increases.

3.Uses: 1) HE: It can be used as a safety balloon or spaceship, mixed with oxygen for diving, which can prevent diver disease.

The natural gas produced in oil wells contains 2%, which is the main ** for industrial use.

Preparation method: natural gas is compressed and cooled and liquefied, and HE is difficult to liquefy and separated.

2) NE: Red light occurs in the void of the real thing's empty discharge tube, which is used for advertising lights.

3) AR: Filled bulb to protect tungsten filament.

4) KR, XE: used in the photographic industry. KR, XE are in a vacuum discharge tube and emit a blue light.

5) RN: It is a radioactive gas that is almost non-existent in nature.

4.Blunt compounds.

In 1962, the first blunt gas compound - XE fluoride was discovered in Barrett, Canada, and then hundreds of KR and XE compounds were successfully synthesized successively (such as XEF2 and KRF2), and the traditional concept of "noble gas cannot form compounds" needs to be revised, and noble gas is just inactive.

Inert gases generally refer to nitrogen, carbon dioxide, helium, neon, argon, krypton, xenon, and radon gases.

In the past, it was believed that the elemental nature of the following elements was stable, inactive, and inert! Refers to helium, neon, argon, krypton, xenon, and radon.

Inert gases, also known as blunt gases, noble gases, and precious gases return. It is about the composition of the atmosphere, most of which is argon, and other gases have very little composition, and because these gases are basically inactive, they are called noble gases.

Including: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (XE), and radon (RN), all of which are colorless, odorless, and gaseous monoatomic molecules. In the periodic table, it is group 0 (group a), the outer electrons have reached saturation and the activity is minimal.

For the reaction a(g)+b(g)=c(g).

Isobaric condition: Filled with inert gas, the reaction rate remains unchanged, and the equilibrium does not move Isobaric condition: Filled with inert gas (the volume increases, the concentration of reactant products decreases, and the considerable pressure decreases), the reaction rate decreases, and the equilibrium moves in the direction of the total volume increase (reverse reaction direction).

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It does not affect under constant capacity conditions.

The introduction of inert gas under constant pressure will increase the reaction volume, decrease the concentration of reactants, and decrease the rate.

Chemists have forced the relatively large noble gases of krypton, xenon, and radon to combine with atoms like fluorine and oxygen, which are particularly fond of accepting electrons from other atoms. Noble gases with smaller atoms – helium, neon, argon – have so far not been able by any chemist to involve them in chemical reactions.