Atoms and Molecules

Atoms and Molecules — page 1
Tiny Ingredients The ancient Greek philosopher Democritus believed if you continued cutting a material by halves you would find a particle that could not be divided He called it the atom a word that means indivisible In the early 1800s the English scientist John Dalton revived the idea of atoms in his studies of gases His work led to our modern atomic theory John Dalton 1766 1844 first earned recognition in 1794 for his research on color blindness a condition he had Later he developed a model of atoms and theories of their behaviors based on careful scientific measurement John Dalton