ProblemHow did different scientists contribute to the creation of modern atomic theory? Why should they be accepted? Hypothesis If scientists improved their respective theories, these improved theories would help create the modern atomic theory. General Objectives: - Analyze how different theories have contributed to the creation of modern atomic theories. Specific: -Compare the different theories and beliefs stated by scientists.-Determine how the different theories overlap.IntroductionAll matter is made of atoms. Water, food, clothes, furniture and everything around us, including ourselves, human beings, are also made of atoms. An atom is the smallest particle contained in matter that still retains its physical and chemical properties. (Introduction to Atoms, 2014.) Atomic theory is a theory that states the structure, properties, and behavior of an atom. (Atomic Theory, 2014.) Democritus, Dalton, Thompson, Millikan and Rutherford were some of the scientists who contributed to the development of modern atomic theory. Each of them developed a certain experiment to try and demonstrate their way of seeing these tiny particles. They tested and proved each other's theories, in order to create the modern atomic theory. During this investigation, previous scientists will be studied and explained, with the aim of understanding how these theories have overlapped and improved.l. DemocritusDemocritus, also known as "The Father of Modern Science", was an ancient Greek philosopher born in Abdera. During his early life he traveled to different places in search of wisdom and knowledge. (Internet Encyclopedia of Philosophy, 2014) With the help of his mentor, Leucippus, he theorized what…half of the paper…the butt of an atom was contained in the nucleus, while the rest of the atom the atom was one empty space. Rutherford discovered this by experimenting with gold foil. (Rutherford - Atomic Theory, 2014) The gold foil experiment involved baking radioactive alpha particles onto a thin sheet of gold foil and tracking them using screens to see the direction of their deflection. Most of the particles passed directly through the sheet, except one. This reflection led to the creation of his theory which stated that most of the atom was empty space and the discovery of a very densely packed bundle of matter with positive electrical charge. (Editors of Encyclopedia Britannica, 2014.)Figure 7. (Rutherford`s Gold Foil Experiment, 2014)Rutherford then realized that the volume of a nucleus was small compared to the total volume of an atom. (Modern Chemistry, pp. 71. 2012)