inert
Generally, those are the elements in Group 18, called the noble gases.
the periodic table
Helium is inert and does not readily react with other elements, including fluorine. Fluorine is a highly reactive element and will readily react with many other elements, but not with helium due to its stable electron configuration.
It can react with Hydrogen, Litium and some unknown elements.
Group 17 elements, also known as the halogens, are the p block elements that react to form halides. They readily react with other elements to form salts called halides, such as sodium chloride (NaCl) and potassium iodide (KI).
The family of elements that react readily with metals is the halogens. This group includes elements such as fluorine, chlorine, bromine, iodine, and astatine. Halogens are highly reactive nonmetals that readily form compounds with metals by gaining an electron to achieve a stable electron configuration.
Silicon is a non-metal element that is not very reactive. It usually forms covalent bonds rather than ionic bonds with other elements. It reacts with oxygen at high temperatures to form silicon dioxide, but it does not readily react with most other elements at room temperature.
All noble gases don't react with other elements. Noble or inert gases don't react with other elements because their outer electron shells are completely full. However, the heavier noble gases actually can be forced to react with very electronegative elements like oxygen and fluorine. However, they don't do so readily.
Noble gases, group 18 on the periodic table, do not react readily with other elements due to their stable and full outer electron shells. This leads to low reactivity and makes them chemically inert.
Group 1 and group 2 elements are reactive metals and react readily with water. They also react readily at high temperatures with oxygen. Over the millenia any free deposits would react to form compounds.
Argon is an inert gas, meaning it is very stable and does not readily react with other elements. It is unlikely to form compounds due to its full outer electron shell which makes it chemically inert.
Helium, Neon, and Argon are called inert gases because they have a full outer electron shell, making them stable and less likely to react with other elements. They rarely form chemical compounds due to their stable electron configuration.