What is the difference between one element and another? John Dalton formulated a new
atomic theory to explain chemical reactions, based on the concept that each element
consists of its own unique...
all matter is made of small indivisible particles called atoms
all atoms of the same element are identical to each other
atoms of different elements are different
atoms combine in simple integer...
History of atom
Greek philosophers suggested that matter consisted of indivisible fundamental particles. In the 5
th century, Democritus named the particles “atoms” from the Greek word for...