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460 BCE
Democritus
Democritus was a Greek philosopher around 460 BCE. According to Democritus particle theory everything is comprises of atoms but there lies an empty space between them, there are infinite number and kinds of atoms. He died around 370 BCE. -
Isaac Newton
Isaac Newton was an English philosopher born on 4 January 1643. According to Newton's particle theory he thought that matter was made up of particles in the 17th century, But however that theory was changed later on. He died on March 31 1727 -
John Dalton
John Dalton was an English chemist, physicist and meteorologist who was born on 6 September 1766. He is best known for introducing the atomic theory into chemistry. He provided a method of calculating relative atomic weights for the chemical elements. He died on 27 July 1844. -
Albert Einstein
Albert Einstein was a born in Germany on 14 March 1879. He was a theoretical physicist. He mathematically proved the existence of atoms. Atomic theory says that any liquid is made up of molecules and are always in motion.
