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State the valencies of the following elements : magnesium and sodium. |
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Answer» Magnesium : a) Atomic number of magnesium is 12. b) Distribution of electrons is 2, 8, 2. c) Hence the valency is 2. Sodium : a) Atomic number of sodium is 11. b) Distribution of electrons is 2, 8, 1. c) Hence the valency is 1. |
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