robert millikan contribution to atomic theory

How did Robert Millikan change the atomic model? What did Robert Millikan discover about the electron? Millikan’s experiment determined that the electrons did, indeed, have mass. Electrons have such a small mass, they were believed to be massless. Robert Millikan was able to determine the mass of an electron by using charged oil drops. How did Robert Millikan’s oil-drop experiment change scientists view of the atom? The charge on each drop was always some multiple of a single very small value, which he proposed to be the fundamental unit of charge carried by each e. What did Robert Millikan discover about the electron? The charge and the mass of the electron. What did Robert Millikan discover about the electron quizlet? His oil drop experiment confirmed the existence of the electron and accurately determined its charge. Robert Millikan’s accomplishments were the design and fine-tuning of experiments which unambiguously confirmed the most important scientific theories of his time, providing the implications for atomic theory. What did Robert Millikan contribute to the modern atomic theory? Rutherford’s gold foil experiment showed that atoms have a small, dense, positively charged nucleus the positively charged particles within the nucleus are called protons. Millikan discovered that there is a fundamental electric charge-the charge of an electron.

What did Millikan believe about the atom? 6 What was Millikan’s contribution to atomic theory?.5 What did Robert Millikan discover about the atom?.4 What did Robert Millikan discover about the electron?.3 How did Robert Millikan change the atomic model?.2 What did Robert Millikan contribute to the modern atomic theory?.1 What did Millikan believe about the atom?.Millikan did not directly contribute to the model of atom but did help future scientist change the atomic model. Due to the long lasting evaporation time of oil Millikan could get better results. Water evaporated too quickly to get good results, (evaporated in seconds). Millikan contributed to finding the charge of the electron He did this by using the famous “Oil Drop Experiment” in 1909 He created a more efficient process in comparison to the process made by H.A. He proved that the electron was fundamental particle with a fundamental charge.Ĥ How Did His Experiment Change the Atomic Model By balancing charged oil droplets between an electric field and gravity. In 1909 he observed that the charge on any drop was an integral multiple of fundamental value. Millikan found that the rapid evaporation of the water droplets made measurement difficult and the results erratic. this device allows the oil drops to fall between two plates with an electric field under it to test the charge of the electrons.

Millikan used his experimental design to test the charge of the electrons that were in the oil droplets that he evaporated this method was called oil-drop. Presentation on theme: 'Robert Millikan: How He Changed the Atom'- Presentation transcript:ġ Robert Millikan: How He Changed the Atomĭone by: Maxwell Murray, Calix Waldrop, Elijah Jennings, and Emily Maul

Robert millikan contribution to atomic theory