because the outer valence is incomplete.
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.
Silicon primarily reacts with nonmetals such as oxygen, sulfur, and halogens. It can also react with certain metals to form silicides.
Silicon is a metalloid that can form compounds with both metals and nonmetals. It commonly forms covalent bonds with elements like oxygen to create silicates, which are found in minerals like quartz and sand. Silicon can also react with metals to form alloys, such as with aluminum to create strong and lightweight materials.
Silicon does not react with most acids, such as hydrochloric acid and sulfuric acid, or bases like sodium hydroxide. It also does not readily react with most nonmetals, such as oxygen or nitrogen, under normal conditions.
the periodic table
inert
carbon is one of them, they are in the same column
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.
Generally, those are the elements in Group 18, called the noble gases.
It can react with Hydrogen, Litium and some unknown elements.
Silicon primarily reacts with nonmetals such as oxygen, sulfur, and halogens. It can also react with certain metals to form silicides.
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 metalloid that can form compounds with both metals and nonmetals. It commonly forms covalent bonds with elements like oxygen to create silicates, which are found in minerals like quartz and sand. Silicon can also react with metals to form alloys, such as with aluminum to create strong and lightweight materials.
Silicon does not react with most acids, such as hydrochloric acid and sulfuric acid, or bases like sodium hydroxide. It also does not readily react with most nonmetals, such as oxygen or nitrogen, under normal conditions.
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.