Take a look in ~ the snapshot below. Each of those colored balls is an electron. In an atom, the electron spin roughly the center, likewise called the nucleus. The electrons favor to be in separate shells/orbitals. Shell number one have the right to only host 2 electrons, shell two deserve to hold 8, and also for the very first eighteen facets shell three have the right to hold a best of eight electrons. Together you learn around elements with much more than eighteen electron you will find that shell three deserve to hold much more than eight. When one covering is full, the following electron the is included has to move to the following shell.So... For the facet of MAGNESIUM, you already know that the atomic number speak you the variety of electrons. That way there room 12 electrons in a magnesium atom. Looking in ~ the picture, you can see there room two electrons in shell one, eight in covering two, and also two an ext in covering three.

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► an ext about the background and areas to uncover magnesium.► Next aspect of the periodic table.
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Magnesium OxideMagnesium (Mg) is able to bond v one oxygen (O) atom. The formula of the compound is MgO. You deserve to see in the dot structure that the 2 atoms re-superstructure four various electrons. As soon as a link is do with four electrons, that is dubbed a double bond. It is more powerful than a single bond i beg your pardon only provides two electrons.
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Magnesium DichlorideMagnesium dichloride is commonly known as magnesium chloride. You have the right to use one of two people name as soon as talking around the compound. Because magnesium (Mg) has actually two extra electrons it looks about for elements which can use them. In this case, magnesium bonds through two chlorine (Cl) atom which each need one electron. With the additional electron, chlorine has actually a filled shell and also magnesium loses two electrons. Magnesium likewise has a fill shell!
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