Neon is unreactive because its valence shell is completely filled with eight electrons. Atoms undergo chemical reactions and form compounds in order to fill their outermost (valence) energy shell with eight electrons (two for helium, lithium, and beryllium). Having a filled valence shell makes an atom stable.
Its valence shell is already completely full.
why helium does not react with other elements to form compounds
maybe an element and some other stuff but no 2 compounds can combine to form just an element
They are highly reactivated. they are reacting with other compounds.
Unlikely other elements in the periodic table, noble gases rarely form compounds with other elements.
No, it is an element but as such can form compounds.
why helium does not react with other elements to form compounds
Yes, they can.
maybe an element and some other stuff but no 2 compounds can combine to form just an element
Beryllium can form binary compounds with the majority of the nonmetals and metalloids.
Compounds do not form elements. Elements form compounds.
Hg (Mercury) is an element, not a bond. It can bond with other elements in different way to form compounds.
They are highly reactivated. they are reacting with other compounds.
Curium is reactive and can form compounds with the majority of nonmetals.
Noble gasses rarely form compounds. They are in the 18th period. He, Ne, Kr are few examples.
Almost every other element except the elements in group 18 bond with oxygen to form compounds.
Unlikely other elements in the periodic table, noble gases rarely form compounds with other elements.
Fluorine and hydrogen: to form argon fluorohydride.Hydrogen to form argonium or argon hydride.