State the Kossel - Lewis approach to chemical - bonding.
Answers
Kossel-Lewis approach to Chemical bonding:
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In the year 1916, Kossel and Lewis proposed/showed some logical explanation about the valance based on the Inertness of the noble gases. Lewis firstly showed the atom which was positively charged of the nucleus and inner electrons, also he showed the outer shell could accommodate upto eight electrons in it.
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He later came to the thought that these eight electrons could occupy the corners around the Kernel. Therefore, only one outer shell electron of sodium can occupy the corner of the cube. But on the other case all the eight corners will get occupied because of the case of the noble gases. Lewis stated that when a atom gets into chemical bonding with the other, it will achieve the stable octet. A stable outer octet if electrons is formed by sharing a pair of electrons between atoms.
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Kossel provided information based on the modern concepts such as ion-formation by transfer of electrons and formation of ionic crystalline compounds. Kossel shared the other relation to chemical bonding such as negative and positive ions were stabilized by electrostatic attraction and many other approaches to chemical bonding.