Which characteristic of calcium is most closely related to its chemical reactivity? The 20 protons in each atom of calcium The density of calcium, which is 1.54 g/cm3 The atomic mass of calcium, which is 40.078 amu The 2 valence electrons in each atom of calcium

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Biology

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13 March, 01:23

Which characteristic of calcium is most closely related to its chemical reactivity? The 20 protons in each atom of calcium The density of calcium, which is 1.54 g/cm3 The atomic mass of calcium, which is 40.078 amu The 2 valence electrons in each atom of calcium

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Answers (1)

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Rylan Randolph · Answer 1

The 2 valence electrons in each atom of calcium

Explanation:

The chemical reactivity of an element is mostly dependent on it valence electrons and the distance of its valence electrons from the atomic nucleus. The Electron configuration for Calcium is 2.8.8.2. This means that it can donate the two outer electrons to achieve stable electron configuration 2.8.8. And because the two valence electrons are three (3) orbitals away from the nucleus, Calcium is relatively more reactive than metals in the 2nd period of the periodic table.