atomic number 20 (0 synonym found)

Definition of atomic number 20:

(n) : a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals

Definition of atomic number 20:

(n) : a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals

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