Chapter Name : Chemical Bonding And Molecular Structure |
Sub Topic Code : 102_11_04_02_01 |
Topic Name : Kossel-Lewis Approach To Chemical Bonding |
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Sub Topic Name : Kossel - Lewis Approach to Chemical Bonding |
• In 1916 when Kossel and Lewis succeeded independently in giving a satisfactory and first provided some logical explanation of valence which was based on the inertness of noble gases. • Lewis postulated that atoms achieve the stable octet when they are linked by chemical bonds. • Chemical bonds can form either by the transfer of electrons (ionic bond) or by sharing of electrons (covalent bonding).
Matter, noble gases, molecules, atoms, periodic table, chemical bond
All matter, piece of wood, bucket, chalk, universe are all composed of molecules.
How does matter form?
Key Words | Definitions (pref. in our own words) |
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Electrostatic bond | • The bond formed, as a result of the electrostatic attraction between the positive and negative ions was termed as the electrovalent bond. |
Gadgets | How it can be used |
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Magnet and iron object | See how attractive forces exist between the magnet and the iron object. Similarly a chemical bond is formed between two atoms. |
Bonding helps to bring stability, stable octet in case of chemical species.
Kitchen, garage, park, garden
Examples | Explainations |
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Wood, water, salt | All matter is made up of molecules. Molecules are made from atoms by chemical bonding. |
All matter is made up of atoms. Atoms combine by chemical bonding to produce molecules.
Chemical bonding helps to make different types of substances. Bonding takes place as all elements attempt to get a stable octet in their valence shells.
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