they do not exist as molecules because they are noble gasses; as in they already have 8 valence electrons and therefore do not need anymore to have a full outershell. they rarely ever bond to anything because they are already stable and do not need to bond to have 8 valence electrons as most elements do when they become ions.
The gases that you listed are nobel gases and thus have a full octet of electrons making them very stable. In order for bonding to occur they would have to give or take additional electrons making them unstable. This is because of some rather advanced physics but just think of it as the atoms are happy that they have 8 electrons and don't want to change that thus don't want to bond with anything.
There are six noble gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn). Noble gases have completely filled orbitals / energy levels. They generally have 8 valence electrons (helium has only 2) and have stable electronic configuration. Hence they are chemically inert and generally donot form compounds under normal conditions.
They are in the Group VIII Periodic Table (noble gases); therefore they have 8 valence electrons; this is a stable configuration.
Neon is a noble gas, so it's oxidation state is zero, so it has no charge.
Argon will not readily combine with any other element because it is already a stable element. It will take a lot of work to make Argon bond with other elements.
Because they have completely filled electronic configuration.
Most of them are not reacting. but Xe is reacting with others.
Noble gasses have a stable electron configuration. So they do not tend to react with other elements easily.
Noble gases are chemically inert and do not combine with alkaline earth metals. However, xenon will combine with highly electronegative elements like fluorine and oxygen forming compounds like XeO2, XeO3, XeF4, XeF6, XeOF4 etc.
Noble gases have completely filled electronic configuration and hence they are chemically inactive / inert / do not form bond with other elements.
Noble gases have completely filled orbitals. They generally have 8 valence electrons (helium has only 2) and obey octet rule (stable electronic configuration). Hence they are chemically inert (or do not react with other elements) and are known as inert gases.
Noble gases do not often combine with other elements.
Noble gases do not react chemically with other noble gases.
Noble gases are chemically inert and do not combine with alkaline earth metals. However, xenon will combine with highly electronegative elements like fluorine and oxygen forming compounds like XeO2, XeO3, XeF4, XeF6, XeOF4 etc.
Yes, because they are extremely hard or impossible to chemically combine with other elements.
The Inert Gases of Group 0 rarely combine with other elements as they are (exc. Radon) extremely unreactive. The Inert Gases are:HeliumNeonArgonKryptonXenon(Radon)
The Group 18 elements are called the noble gases or sometimes inert gases. Wikipedia has information on the noble gases, and a link is provided.
Argon and the other Noble gases in the far right group (column) of the periodic table have a full outer shell of electrons and cannot form bonds with other elements.
Noble gases have completely filled electronic configuration and hence they are chemically inactive / inert / do not form bond with other elements.
Metals are particularly likely to combine chemically with the halogens you listed, but I will add that almost every element on the periodic table (with the exception of the noble gases) will combine with at least some of the halogens.
Noble gases have completely filled orbitals. They generally have 8 valence electrons (helium has only 2) and obey octet rule (stable electronic configuration). Hence they are chemically inert (or do not react with other elements) and are known as inert gases.
The noble or inert gases.
Noble gases are chemically inert.
in nuclear fusion i assume it is theoretically possible to combine any elements but in terms of chemical bonding, no some elements ie noble gases are very nonreactive, though the heavier noble gases do form compounds with oxygen and fluorine.
Noble gases do not often combine with other elements.