Mole denotes a number which has a value 6.022×
.number of atoms present in one gram atom (12 gram) of c-12 is called avogadro's number one gram atom of every element is found to have 6.022×
atoms.this no. is called mole.
RUTHERFORD was a scientist who gave the atomic model in 1911.
an atom is the smallest particle which take part in chemical reaction but does not exist in free state......