Take a look in ~ the picture below. Each of those colored balls is one electron. In one atom, the electron spin about the center, likewise called the nucleus. The electrons favor to it is in in separate shells/orbitals. Shell number one have the right to only host 2 electrons, shell two can hold 8, and for the first eighteen aspects shell three deserve to hold a preferably of eight electrons. Together you learn around elements with more than eighteen electrons you will uncover that covering three deserve to hold an ext than eight. When one shell is full, the next electron the is included has to relocate to the following shell.So... For the element of CHLORINE, you already know the the atomic number speak you the variety of electrons. That method there space 17 electron in a chlorine atom. Looking at the picture, you have the right to see there are two electrons in shell one, eight in covering two, and seven in shell three.

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► an ext about the background and locations to discover chlorine.► Next facet of the periodic table.
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Sodium ChlorideThis is sodium chloride, likewise known as table salt. Most civilization scientist understand that the formula because that salt is NaCl. One salt (Na) atom offers it"s electron come one chlorine (Cl) atom. Chlorine then has actually the eight electron in its external shell to make it "happy". Sodium is "happy" due to the fact that it has now given up that is one extra electron.

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Aluminum TrichlorideChlorine (Cl) can also bond with aluminum (Al). Aluminum has three extra electrons and will easily let the chlorine atoms usage them. Since aluminum has actually three, that method three chlorine atoms have the right to bond. They make the formula AlCl3, also known together aluminum trichloride. Every of the chlorine atoms gets an electron to fill its shell, and also the aluminum loses three, providing it a filled shell too (remember, Aluminum has three extra electrons). The surname trichloride method three chlorine atoms are involved.
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Nitrogen TrichlorideNitrogen can combine with 3 chlorine atoms, forming Nitrogen trichloride, or NCl3. Nitrogen share its electrons v the chlorine atoms, so every one of the atoms have their shells filled.Take a look in ~ the dots about the atoms. Every one of them now have actually eight electrons, and also a filled outer shell!
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- stclairdrake.net: periodic Table- stclairdrake.net: Atoms- stclairdrake.net: Compounds- stclairdrake.net: Halogens- stclairdrake.net: Fluorine- stclairdrake.net: Sodium- stclairdrake.net: chemical Bonds- Geography4Kids: Seawater
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