3/18/2024 0 Comments Niels bohr niels bohr atomic modelThis conclusion led to the theory that electrons exist in energy levels around the positive nucleus and have their own distinct properties in each of their energy levels. This theory was adopted by Niels Bohr in 1913 who theorised that electrons could orbit the nucleus in a circular orbits and that the distance of the electron to the nucleus was fixed unless it moved between energy levels with the absorption or emission of light. Max Planck and Albert Einstein in the field of physics postulated that light energy can be absorbed and emitted as quanta. It was not until the earlier 20th Century that the scientific community arrived at the modern day atomic model. Now the atomic model had a central particle and electrons around it, reversing he plum pudding model of Thomson. He named this new fundamental particle as a proton. Niels Bohr proposed a model of the atom in which the electron was able to occupy only certain orbits around the nucleus. The Fly in the Cathedral: How a Small Group of Cambridge Scientists Won the Race to Split the Atom. Philosophical Magazine Series 6 26 (July 1913): 1-15. Rutherford conducted a number of experiments with hydrogen nuclei and nitrogen in air using alpha particles and after a number of theories concluded that the hydrogen atom made up other atoms. On the Constitution of Atoms and Molecules. Rutherford further followed this up in 1917 when he proved that a hydrogen nucleus (1 proton) is present in other nuclei of different elements most notably nitrogen gas in the air.
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