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Mazyrski [523]
3 years ago
5

What is an element of calcium?

Biology
2 answers:
REY [17]3 years ago
6 0

Answer:

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.

Sunny_sXe [5.5K]3 years ago
3 0

Answer:

Calcium is a chemical element with the symbol Ca and atomic number 20.

Explanation:

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