group vs chemistry

group and chemistry both are nouns.

Word	Noun	Adjective	Verb	Adverb
group	Yes	No	Yes	No
chemistry	Yes	No	No	No

group (noun)	chemistry (noun)
any number of entities (members) considered as a unit	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
a set that is closed, associative, has an identity element and every element has an inverse	the way two individuals relate to each other
(chemistry) two or more atoms bound together as a single unit and forming part of a molecule	the chemical composition and properties of a substance or object

group (verb)	chemistry (verb)
arrange into a group or groups
form a group or group together