Search Result：atomic number 11
atomic number 11 
(TTS Sound)
(TTS Sound)Overview of noun atomic_number_11
The noun atomic number 11 has 1 sense
- sodium, Na, atomic number 11 -- (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))