- a silvery soft waxy metallic element of the alkali steel team; occurs amply in normal compounds (especially in salt liquid); burns off with a yellow fire and reacts violently in liquid; does occur in sea water as well as in the mineral halite (rock-salt)
- a silvery smooth waxy metallic element of the alkali steel team; takes place amply in all-natural substances (especially in sodium water); burns with a yellow fire and responds violently in water; does occur in sea-water plus the mineral halite (rock salt)
Hypernym for "atomic number 11"
- metallic element
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