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chemistry

Throughout the discovery of the atom, many scientists worked to formulate how the atom works. Which began in the early 1800's with John Dalton, to our current model of the electron cloud developed by Schrodinger. During this long process of the discovery the atom, took many models and scientists. The entire group of scientists who assisted in the discovery of the atom used each other's model to improve each other's theories. Firstly, John Dalton showed that, collectively, the three laws, the law of definite proportion, the law of conversation of masses, and the law of multiple proportion. These three laws demonstrate the existence of the atom. Also, Using these three laws he developed a theory called, Dalton's Atomic Theory. This includes five basic principles; 1) all matter is made of indivisible and indestructible atoms, 2) atoms of a given element are identical in their physical and chemical properties, 3) atoms of different elements have different physical and chemical properties, 4) atoms of different elements combine in simple whole-number ratios to form chemical compounds, 5) atoms cannot be subdivided, created or destroyed when they are combined, separated, or rearranged in chemi


Thompson came Ernst Rutherford, who was a student of Mr. He discovered that charged and magnets deflected the straight paths of cathode rays. Furthermore, he modified the wave equation, to form classical physics to fit the concept. He related his model to a ladder, a person can stand on the rungs of the ladder, and however it is impossible for a person to stand between the rungs. He created "gold-foil experiment" which untimely-disproved J. The electron cloud was like a chaotic motion of electrons. Around 1913, a Danish physicist named Niels Bohr came up with a new model to further our knowledge of the atom. In his model, he purposes that the electrons in the atom can reside only to certain energy levels. In addition, he discovered negative and positive charged particles. In this experiment he directed a beam of alpha particles at a very thin gold foil sheet. He stated that the atom was made of smaller particles called, electrons and protons. The major was that his experiment was that the atom would eventually lose its energy and collapse in the nucleus.

Common topics in this essay:
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