* Sulfur (S) and Carbon (C) are nonmetals. They are located on the right side of the periodic table.
* Neon (Ne) is a noble gas. It's in group 18 of the periodic table.
* Water (H₂O) is a compound. It is formed by the chemical combination of two hydrogen atoms and one oxygen atom.
While water contains the element hydrogen, it is not considered an element itself.
Therefore, the elements you listed belong to nonmetals, noble gas, and compound categories.