In the blockbuster film hit Back to the Future, which came out 30 years ago, and its sequels, this, 2015, is the future - the year Marty McFly and Doc Brown zoomed off to visit in their souped-up flying DeLorean.
Metallic bonding in magnesium. If you work through the same argument with magnesium, you end up with stronger bonds and so a higher melting point. Magnesium has the outer electronic structure 3s 2. Both of these electrons become delocalised, so the sea has twice the electron density as it does in sodium. The remaining ions also have twice the charge (if you are going to use this particular view of the metal bond) and so there will be more attraction between ions and sea.
The Reaction between Magnesium and Oxygen. Magnesium is in group 2 of the periodic table. A magnesium atom will lose 2 electrons to form a stable 2+ ion. Oxygen is in group 6 of the periodic table.An oxygen atom will gain 2 electrons to form a stable 2- ion. In this example the electrons are shown as dots and crosses.agnesium is in group 2 of the periodic table. A magnesium atom will lose 2 electrons to form a stable 2+ ion. Oxygen is in group 6 of the periodic table. An oxygen atom will gain 2 electrons to form a stable 2- ion. In this example the electrons are shown as dots and crosses.