CHEM 102 Lecture Notes - Lecture 4: Bohr Model, Atomic Orbital, Magnetic Quantum Number

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Chem102 - lecture 4 - quantum mechanical model of the atom. By the 1920s, it was realized that bohr"s model of the atom was incorrect because its ideas were incapable of being applied to any other atom but hydrogen. Many scientists contributed to a new approach called quantum mechanics. The bohr model assumed that the electron is at a constant distance while it orbits around the nucleus. Heinsberg disproved this by saying that because the particle exhibits properties of both a particle and a wave, it is impossible to assume the position and the momentum of a particle simultaneously. The quantum mechanical model is based on mathematical equations like the schrodinger equation. We do not need to know how to solve the schrodinger equation because of its complexity. However, we do need to know what it does and why it matters. The schrodinger equation calculates an energy state associated with a given atomic orbital.