crystallogen vs carbon group element

crystallogen and carbon group element both are nouns.

Word	Noun	Adjective	Verb	Adverb
crystallogen	Yes	No	No	No
carbon group element	Yes	No	No	No

As nouns, crystallogen and carbon group element are synonyms defined as:

crystallogen and carbon group element: any chemical element that belongs to the carbon group.

Other synonyms of crystallogen include Group 14 element, tetragen, tetrel.

crystallogen (noun)	carbon group element (noun)
any chemical element that belongs to the carbon group.	any chemical element that belongs to the carbon group.