Is helium the most stable compared to other inert gases?

Helium is the most stable compared to other inert gases. Previously, these noble gases were called "inert gases" and had a high ionization potential. This means that it does not react with other chemicals and there are no synthetics.

The smallest atomically noble gas is helium. Of all the elements, it is the least likely to participate in chemical reactions, and the most inert, and even the helium atoms themselves are extremely reluctant to combine with each other, so that they do not become liquid until the temperature drops to 4 K. Liquid helium is the hottest liquid that can exist, and it is essential for scientists to study low temperatures.

In fact, 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. The less atomically smaller noble gases – helium, neon, argon – have become so small that no chemist has been able to involve them in chemical reactions until now.

The relative chemical stability of noble gases is arranged as follows: NE >HE>AR > kr>xe> RN Neither neon nor helium have stable compounds found, and theoretically some charged atomic clusters containing helium and neon may have some stability. Argon and krypton have been reported to have compounds such as HARF and KRF2, but in general, both gases are more stable than nitrogen.

As a shielding gas, argon is more effective than nitrogen, for example in reactions involving lithium metal, which must be protected with argon because nitrogen will combine with lithium. Xenon is the rare gaseous element with the most found compounds so far, and radon is theoretically more reactive, but it is inherently radioactive and has a short half-life, so only some fluoride is synthesized. By the way, helium and radon are both present in small amounts in air, helium is generally separated from natural gas, while radon is prepared by separation from radium decay products.

Therefore, the most stable gas in the air should be neon.

The helium backup section is an inert gas.

A brief introduction to helium is as follows:

Helium (helium) is abbreviated as he, and its atomic number is 2, atomic weight.

It is 4.002602. It is a colorless, odorless, tasteless and inert monoatomic gas.

The name of the element is derived from the Greek word for "sun". Janssen, France, 1868.

Using a spectroscope to observe the surface of the sun, a new yellow spectral line was found, and it was thought to belong to an unknown element on the sun, hence the name helium. Helium is normally a colorless, odorless gas and is the only gas that cannot be at standard atmospheric pressure.

under the cured substance. Helium is the least reactive element. The main applications of helium are as shielding gases, working fluids in gas-cooled nuclear reactors, and ultra-low temperature refrigerants.

February 6, 2017, Nankai University, China.

The team of Wang Huitian, Zhou Xiangfeng and their collaborators published a report on the synthesis of sodium helium compound, Na2HE, under high pressure conditions in Nature Chemistry, ending the helium element.

No history of compounds, which marks the Chinese Hui rolling dust in rare gases.

The field of chemistry has moved to the forefront.

To obtain liquid helium, helium must first be compressed and cooled to the temperature of liquid air, and then it must be allowed to expand, causing the temperature to drop further, and helium becomes liquid. Liquid helium is a liquid like no other, with a boiling point of minus 269. At such low temperatures, hydrogen also becomes solid, and when it comes into contact with air, the air immediately freezes into a hard lid on the surface of liquid helium.

Summary. Hello dear, under normal conditions and under most conditions of daily life, helium and argon are chemically stable, inactive and classified as inert gases. However, there are prerequisites for the division of noble gases, and when both types of gas molecules are in an excited state, then they can be used as active gases.

Both helium and argon can be used for inert gas protection+ Please explain the advantages of argon over helium.

Hello dear, under normal conditions and under most conditions of daily life, helium and argon are chemically stable, inactive and classified as inert gases. However, the division of this inert gas is premised on the premise that when both types of gas molecules are in the state of excitation, then they can be used as active gases.

Because of its stable chemical properties, it appears dark yellow when discharged at low voltage. Generally, no compounds are formed, and HE2+, HEH plasma and molecules can be formed when excited in low-voltage discharge tubes. In the general state, it is difficult to disassemble and react with other substances, and under certain conditions, compounds can be formed with certain metals.

Summary. Barometric instability can be caused by a variety of reasons, including weather changes, atmospheric changes, topographic changes, barometric system changes, etc.

Barometric instability can be caused by a variety of reasons, including weather changes, atmospheric changes, topographic changes, barometric system changes, etc.

Can you add, I don't quite understand it.

There can be many reasons why helium air pressure is unstable, such as:1Failure of the barometric pressure sensor:

Barometric pressure sensors may malfunction out of the hole, resulting in inaccurate or unstable barometric pressure. 2.Barometric pressure changes:

Air pressure can be affected by external environmental factors, such as air temperature, humidity perception, wind speed, etc., which can lead to changes in air pressure. 3.Other factors:

It can also be caused by other factors, such as clogged pipes, gas leaks, etc.

Think of helium as the ideal gas.

Monoatomic gas cv, m =, the amount of helium n = , t1 = 17 + 273 = 290k t2 = 27 + 273 = 300k

The volume remains the same, so no work is done, i.e., w=0

The change in the internal energy of the ideal gas is δu=ncv, mδt=5*q=δu-w=

The pressure and macro strength remain unchanged.

The absolute energy in an ideal gas is only related to temperature, so it is absolutely the same as the change in the internal energy of this process, that is, δu=

From the equation of state pv=nrt, pv1=nrt1=5*pv2=nrt2=5*

w=pδv=p(v2-v1)=

So q=δu-w=

No exchange of heat with the outside world i.e. adiabatic process, q=0Because the temperature at the beginning and end of the year is the same as in the previous two processes, δu does not change, and it is still .

w=δu-q=

The internal energy of an ideal gas is related to temperature and degrees of freedom, not to pressure and volume, so under the same conditions, the ratio of the internal energy of oxygen and helium mixed with volume is the ratio of their degrees of freedom, helium is a monoatomic molecule with a degree of freedom of 3, and oxygen is a diatomic molecule with a degree of freedom of 5, so the answer is 5 to 3