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Answer:- Calcium is an active metal that reacts with water at room temperature. These types of metals are stored in kerosene. Metal when it is in its pure state it seems to be shiny. The shine on the metallic surface is called the metallic luster. Calcium is a metal that reacts with water at room temperature. Calcium is an alkaline earth metal with an atomic number of 20. The metal is used in aluminum alloys for bearing. The metal is trimorphic and is harder than sodium but softer than aluminum.
