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Compared to a calcium atom, the calcium ion Ca2+ has (1) more protons (3) more electrons (2) fewer protons (4) fewer electrons
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Compared to a calcium atom, the calcium ion Ca2+ has

(1) more protons (3) more electrons
(2) fewer protons (4) fewer electrons

User Katrash
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2 Answers

4 votes
(4) fewer electrons, Ca2+ is a cation.
User Ionelmc
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The answer is definitely 4. It has fewer electrons. This is because, whenever the electrons are few, they are positive. Positive electrons are anions, while the negative ones are cations. Hope i helped. Have a nice day.
User Matthew Perron
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