Question

What is the formula of chloride of calcium???atomic number of calcium 20?

Answer 1

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$\huge \bold {Answer :-}$ Formula of calcium chloride is CaCl2.

The atomic number of calcium is 20.

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Answer 2

Explanation:

The element with atomic number 12 has same chemical properties as that of calcium. This is because both of them have same number of valence electrons (2).

Answer:− Formula of calcium chloride is CaCl2.

The atomic number of calcium is 20.