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Thesaurus: atomic number 3
a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
Related headwords
metaldefinitionalkalidefinitionelementdefinitiongroupdefinitionknowndefinitionlightestdefinitionmineralsdefinitionoccursdefinitionseveraldefinitionsilver-whitedefinitionsoftdefinitionunivalentdefinitionatomic number 20familyatomicfamilyatomic bombfamilyatomic clockfamilyatomic cocktailfamilyatomic energyfamilyAtomic Energy Commissionfamilyatomic explosionfamilyatomic massfamilyatomic mass unitfamilyatomic numberfamilyatomic number 1familyatomic number 10familyatomic number 100familyatomic number 101familyatomic number 102family