29.THE ATOMIC STRUCTURE – Discovery of neutron.

In the 19th century,the research on the structure of the atom was yielding such incomprehensible results that scientists worldwide were astounded by its revelations.However, this also stoked up the desire to find out more about the atom and thus the nature of the universe. It is remarkable though that admist this research , a very…

28.THE ATOMIC STRUCTURE -Pauli’s exclusion principle,Afbau Principle,Hund’s rule of maximum multiplicity,Electronic Configurations.

The Nobel Prize for Chemistry this year is awarded to three great chemists namely,Jean-Pierre Sauvage(University of Strasbourg,France)¬†,Sir J. Fraser Stoddart(Northwestern University , USA) and¬†Bernard L. Feringa (University of Groningen, the Netherlands)“for the design and synthesis of molecular machines” .They have developed world’s smallest machines – molecules with controllable movements.These can perform tasks when energy is…

27.THE ATOMIC STRUCTURE – Quantum Numbers.

In the last post we saw how quantum numbers were introduced to understand the structure of the atom.These quantum numbers described all the necessary parameters about an electron in a given orbit.Let us begin by understanding what these quantum numbers exactly tell us. A] The Principal Quantum number (n)– This parameter divulges information about the…