Posted by MADHURI.M.S on July 8, 2014, 10:02 a.m.
JOHN DALTON WAS AN ENGLISH SCHOOL TEACHER. IN 1805,HE DEVELOPED THE ATOMIC THEORY WHICH CONSIDERED TO BE ONE OF THE MOST SIGNIFICANT BREAKTHROUGHS IN CHEMISTRY.
ACCORDING TO THIS THEORY,ALL MATERS IS MADE UP OF ATOMS THAT ARE INDIVISIBLE AND INDESTRUCTIBLE- AND ALL ATOMS OF A GIVEN ELEMENT ARE IDENTICAL IN THEIR MASS PROPERTIES.
DALTON FURTHER STATED THAT COMPOUNDS ARE FORMED BY A COMBINATION OF TWO OR MORE DIFFERENT KINDS OF ATOMS, AND THAT A CHEMICAL REACTION INVOLVES A REARRANGEMENT OF ATOMS.
DALTON'S THEORY IS IMPORTANT BECAUSE IT GAVE SCIENTISTS THEIR FIRST GLIMPSE INTO THE NATURE OF THE ATOMS, AND STIMULATED FURTHER STUDIES IN THIS FIELD.