<P> The idea that matter is made up of discrete units is a very old one , appearing in many ancient cultures such as Greece and India . The word `` atom '' was coined by the ancient Greek philosophers Leucippus and his pupil Democritus . However , these ideas were founded in philosophical and theological reasoning rather than evidence and experimentation . Because of this , they could not convince everybody , so atomism was but one of a number of competing theories on the nature of matter . It was not until the 19th century that the idea was embraced and refined by scientists , as the blossoming science of chemistry produced discoveries that could easily be explained using the concept of atoms . </P>
<P> The idea that matter is made up of discrete units is a very old one , appearing in many ancient cultures such as Greece and India . The word `` atom '' was coined by the ancient Greek philosophers Leucippus and his pupil Democritus . However , these ideas were founded in philosophical and theological reasoning rather than evidence and experimentation . Because of this , they could not convince everybody , so atomism was but one of a number of competing theories on the nature of matter . It was not until the 19th century that the idea was embraced and refined by scientists , as the blossoming science of chemistry produced discoveries that could easily be explained using the concept of atoms . </P>
who was the first one to proposed the idea about atom
who was the first one to proposed the idea about atom
Leucippus Democritus
Leucippus Democritus