DO YOU KNOW ?

·   Father of Chemistry is Robert Boyle.

·   Father of Modern chemistry Lavoisier.

·   The first person received the Nobel Prize in Chemistry was  Van’t Hoff.

·   The term element was proposed by Robert Boyle.

·   The smallest particle of the matter that directly takes part in a chemical reaction is  atom.

·   The smallest particle of the matter that exists freely is molecule.

·   The liquid non-metal is bromine.

·   The term atom was proposed by John Dalton.

·   The term molecule was proposed by Avagadro.

·   The present system of representing molecular formula was introduced by Alfred Stock.

·   An unbalanced equation is against the law of conversation of mass.

·   The number of atoms present in one molecule of a substance is called Atomicity.

·   Valency electrons are the electrons present in outermost orbit of an atom.

·   Core electrons are the electrons present in inner orbits, except valence electrons.