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Why does sodium form a +1 ion yet Magnesium forms a +2 ion?

User Rame
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2 Answers

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sodium is in group 1. and magnesium is in group two
User FBC
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Sodium is in group 1 while magnesium is in group 2. That's why they form different ions. It's based on what groups the element is in.
User Peter Rankin
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