basic vs elemental

basic is a noun but elemental is not a noun.

Word	Noun	Adjective	Verb	Adverb
basic	Yes	Yes	No	No
elemental	No	Yes	No	No

basic (noun)	elemental (noun)
(usually in the plural) a necessary commodity for which demand is constant

basic (adjective)	elemental (adjective)
pertaining to or constituting a base or basis	relating to or being an element
of or denoting or of the nature of or containing a base	relating to severe atmospheric conditions
reduced to the simplest and most significant form possible without loss of generality	of or being the essential or basic part
serving as a base or starting point