caesium
caesium /ˈsiːzi.əm/ nghĩa là xezi, xêzi
Các nghĩa
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xezi · xêzi
The chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal.
Lithium, sodium, potassium, rubidium, caesium and francium are alkali metals.