窒ちっ素そ族ぞく元げん素そMeaningsNoun1. nitrogen group (group 15 of the periodic table)Kanji used窒suffocate素elementary族tribe元originPitch accentちっそぞくげんそComposed of窒ちっ素そnitrogen (N)Noun族ぞくtribe; race; people; family; group (of people who share a common feature); gang; lot; bunch; tribe (taxonomic rank); group (in the periodic table)Suffix元げん素そelement; chemical element; (classical) element (e.g. earth, water, air, fire)Noun