The concept of Atomic Theory has been refined over centuries of development from the times of the ancient Greeks to famous world known experiments. It was first introduced by ancient Greek Philosophers Leucippus and Democritus who proposed concepts that matter is composed of miniscule indivisible particles which are known today as atoms. The initial thought made known to the world through the Greeks was the start of countless research and experiments that have led to the successful development of the atom that “explains the structure of matter in terms of different combinations of very small particles.” (Chemistryhelpers.com, 2016)
In modern times and events “as scientist began to study the relationship between several physical phenomena such as electricity, and magnetism they began to develop different models about atomic structure.” (Atomictimeline.net, 2016) Modern day physicists generally believe that John Dalton was the genius behind the concept of atomic theory as he introduced methods of experimentation. However many others have contributed to the development such as Ernest …show more content…
Millikan is an American Physicist that designed an experiment most famously known as the Oil Drop Experiment which involved oil being sprayed into the region of two metal plates. As the metal plates were uncharged the oil drops fell through at a constant velocity dependable on its weight. Alternatively when an electric field was applied there was a change in the motion of the oil drops dependable on the voltage applied to the metal plates. He studied the behaviour of the droplets thousands of times both with and without the influence of an electric field. “He found that all charges were whole-number multiples of the minimum charge of 1.6021892 x 10^-19 coulombs.” (Walding, Rapkins and Rossiter, 2004). He called these particles electrons based on their negative
In modern times and events “as scientist began to study the relationship between several physical phenomena such as electricity, and magnetism they began to develop different models about atomic structure.” (Atomictimeline.net, 2016) Modern day physicists generally believe that John Dalton was the genius behind the concept of atomic theory as he introduced methods of experimentation. However many others have contributed to the development such as Ernest …show more content…
Millikan is an American Physicist that designed an experiment most famously known as the Oil Drop Experiment which involved oil being sprayed into the region of two metal plates. As the metal plates were uncharged the oil drops fell through at a constant velocity dependable on its weight. Alternatively when an electric field was applied there was a change in the motion of the oil drops dependable on the voltage applied to the metal plates. He studied the behaviour of the droplets thousands of times both with and without the influence of an electric field. “He found that all charges were whole-number multiples of the minimum charge of 1.6021892 x 10^-19 coulombs.” (Walding, Rapkins and Rossiter, 2004). He called these particles electrons based on their negative