Periodic table - magnesium 0.0 / 5HideShow resource informationScienceMagnesiumStandard GradeNoneCreated by: NicstarCreated on: 30-01-14 05:50 2351 Across 1. How many electrons does the third shell have? (3) 3. How many electron shells does magnesium have? (5) Down 2. Magnesium is a (metal or nonmetal) (5) 3. How many electrons does the first one have? (3) 5. How many electrons does the second shell have? (5)
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