How to say atomic number 11 ?

Atomic number 11

[əˈtɑmɪk ˈnʌmbər 11]

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What is the definition of atomic number 11 ?

  1. 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)
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