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how many electrons does ca2 have
how many electrons does ca+2 have
how many electrons does co2 have
how many electrons does cl2 have
how many electrons does ca have
how many valence electrons does ca2+ have
how many valence electrons in ca2+
how many valence electrons are in ca2+
how many protons does ca2+ have
number of protons and electrons in ca2+
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