atomistic vs atomistical

atomistic and atomistical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
atomistic	No	Yes	No	No
atomistical	No	Yes	No	No

As adjectives, atomistic and atomistical are synonyms defined as:

atomistic and atomistical: divided into separate and often disparate elements

atomistic (adjective)	atomistical (adjective)
divided into separate and often disparate elements	divided into separate and often disparate elements