A calcium atom has 20 protons, 20 neutrons and 20 electrons. What does the calcium atom have to do to become stable? Group of answer choices A. Gain 2 electrons to become negatively charged Ca2- B. Gain 2 electrons to become positively charged Ca2+ C. Lose 2 electrons to become negatively charged Ca2- D. Lose 2 electrons to become positively charged Ca2+
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Calcium has an atomic number of 20, which means it has 20 protons and, in a neutral state, 20 electrons. Show more…
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