Take a look at the image below. Each of those colored balls is an electron. In an atom, the electrons spin around the center, additionally called the nucleus. The electrons prefer to be in separate shells/orbitals. Shell number one can just host 2 electrons, shell two can hold 8, and for the initially eighteenager facets shell three deserve to host a maximum of eight electrons. As you learn about facets with even more than eighteen electrons you will uncover that shell three have the right to hold even more than eight. Once one shell is complete, the next electron that is added hregarding move to the next shell.So... for the facet of MAGNESIUM, you already know that the atomic number tells you the number of electrons. That indicates tright here are 12 electrons in a magnesium atom. Looking at the picture, you have the right to watch tright here are 2 electrons in shell one, eight in shell two, and also 2 even more in shell 3.

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► More around the background and also areas to uncover magnesium.► Next off aspect of the regular table.
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Magnesium OxideMagnesium (Mg) is able to bond with one oxygen (O) atom. The formula of the compound is MgO. You have the right to check out in the dot structure that the 2 atoms share 4 various electrons. When a bond is made with 4 electrons, it is called a double bond. It is more powerful than a solitary bond which just offers 2 electrons.
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Magnesium DichlorideMagnesium dichloride is generally well-known as magnesium chloride. You can use either name as soon as talking around the compound. Because magnesium (Mg) has actually 2 extra electrons it looks about for aspects which might use them. In this situation, magnesium bonds via 2 chlorine (Cl) atoms which each need one electron. With the additional electron, chlorine has actually a filled shell and magnesium loses two electrons. Magnesium likewise has actually a filled shell!
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