Why do all elements want to be like noble gases?

The noble gases are the chemical elements in a group.

They are the most stable due to having the maximum number of valence electrons their outer shell can hold. So, they dont really react with other elements because they are already stable.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

that's what i got you can count the number of atoms