Respuesta :

Answer:  Calcium

Explanation: The chemical element Calcium (Ca), atomic number 20, is the fifth element and the third most abundant metal in the earth's crust. The metal is trimorphic, harder than sodium, but softer than aluminium.

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The answer is calcium


because it is in group 2 which makes it an alkaline earth metal and a powerful reducing agent that loves to react with nonmetals especially powerful oxidizing agents like fluorine and chlorine.

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