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Definition of Atomic number 11
1. Noun. A silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt).
Exact synonyms: Na, Sodium
Generic synonyms: Metal, Metallic Element
Substance meronyms: Halite, Rock Salt, Brine, Saltwater, Seawater
Generic synonyms: Metal, Metallic Element
Substance meronyms: Halite, Rock Salt, Brine, Saltwater, Seawater