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Mario Mcclain
Biology
18 July, 15:23
What is an element of calcium?
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Bianca Ferrell
18 July, 15:25
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symbol : Ca
atomic number : 20
- Calcium is a silvery-white, soft metal that tarnishes rapidly in air and reacts with water. Calcium metal is used as a reducing agent in preparing other metals such as thorium and uranium. It is also used as an alloying agent for aluminium, beryllium, copper, lead and magnesium alloys.
Explanation:
calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air ... It is the fifth most abundant element in Earth's crust and the third most abundant metal, after iron and aluminium.
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Jayvion Donovan
18 July, 15:45
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Calcium is a chemical element with the symbol Ca and atomic number 20.
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