Units

Symbols and Units. Many properties of matter such as length area volume etc are quantitative in nature. Any quantitative observation or measurement is represented by a number followed by units…

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ATOMIC STRUCTURE

SCIENTISTS AND THEIR DISCOVERIES: 1858 Plucker : Experiments with discharge tube. 1876 Goldstain : Gave the name cathode rays. 1879 Crookes : Found cathode rays have mass. 1891 Jhonson Stoney…

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Periodic Classification of elements

PERIODIC CLASSIFICATION OF ELEMENTS 1. An orderly arrangement of elements such that those elements having similarity in physical and chemical properties occur at regular intervals is called periodic classification of…

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Atomic Structure

                                                                      ATOMIC STRUCTURE SCIENTISTS AND THEIR DISCOVERIES: 1858    Plucker                                                     : Experiments with discharge tube. 1876   Goldstain                                                   : Gave the name cathode rays. 1879   Crookes                                                     : Found cathode rays have mass.…

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Chemical Bonding

1. The force of attraction that is binding, atoms or oppositely charged ions together is called chemical bonding. 2. There are two types of chemical bonding ionic and covalent bonding.…

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