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atomic number 12

 
Noun atomic number 12 has 1 sense
  1. magnesium, Mg, atomic number 12 - a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
    --1 is a kind of metallic element, metal
    --1 is a substance of
     carnallite; dolomite; magnesite; olivine; periclase, magnesia, magnesium oxide; spinel
atomic number 4 atomic number 5 atomic number 6 atomic number 7 atomic number 8 atomic number 9 atomic number 10 atomic number 11 atomic number 12 atomic number 13 atomic number 14 atomic number 15 atomic number 16 atomic number 17 atomic number 18 atomic number 19 atomic number 21

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