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24 September, 01:41

What is calcium's matching element

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  1. 24 September, 02:51
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    Answer: Explanation:

    Calcium (Ca), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table. It is the most abundant metallic element in the human body and the fifth most abundant element in Earth's crust.

    ...

    Calcium.

    atomic number 20

    oxidation state + 2

    electron configuration 1s22s22p63s23p64s2
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