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Thesaurus: atomic number 41
a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
Related headwords
alloysdefinitioncalleddefinitioncolumbiumdefinitionductiledefinitionelementdefinitionformerlydefinitiongreydefinitionmetallicdefinitionniobitedefinitionoccursdefinitionsoftdefinitionatomicfamilyatomic bombfamilyatomic clockfamilyatomic cocktailfamilyatomic energyfamilyAtomic Energy Commissionfamilyatomic explosionfamilyatomic massfamilyatomic mass unitfamilyatomic numberfamilyatomic number 1familyatomic number 10familyatomic number 100familyatomic number 101familyatomic number 102familyatomic number 103familyatomic number 104family