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molecule

Lewis Symbols

Last Updated on March 20, 2019 By Mrs Shilpi Nagpal 2 Comments

Lewis symbol

A group of atoms existing together as one species and having characteristic properties is called a molecule. This force which holds the atoms together within a molecule is called a covalent bond. Noble gases neither combine chemically with any other element nor among themselves i.e.they are chemically inert. Noble gases are inactive or stable because they have 8 … [Read more...] about Lewis Symbols

Classification of matter

Last Updated on April 23, 2020 By Mrs Shilpi Nagpal 7 Comments

matter

Matter ​Matter is defined as anything that occupies space and possesses mass. Classification of Matter (1) Physical classification (a) Solid (b) Liquid (c) Gases                  Solid                   Liquid                          Gases (1) They have fixed shape and volume They do not have fixed shape but have fixed volume They do not have fixed … [Read more...] about Classification of matter

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