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Thesaurus: atomic number 1
a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
Related headwords
elementdefinitionabundantdefinitioncolorlessdefinitiondiatomicdefinitionflammabledefinitiongasdefinitionhighlydefinitionlightestdefinitionnonmetallicdefinitionnormallydefinitionodorlessdefinitionsimplestdefinitionunivalentdefinitionuniversedefinitionatomicfamilyatomic bombfamilyatomic clockfamilyatomic cocktailfamilyatomic energyfamilyAtomic Energy Commissionfamilyatomic explosionfamilyatomic massfamilyatomic mass unitfamilyatomic numberfamilyatomic number 10familyatomic number 100familyatomic number 101familyatomic number 102family