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Niels Bohr created the planetary model of the atom, including the nucleus and electrons. This, however, is not the accurate model of atoms. It is said to be the electron cloud which is most accurate
The main deficiency of Bohr's atomic model was its inability to accurately explain the spectra of larger atoms beyond hydrogen and the phenomenon of electron behavior. The model treated electrons as fixed orbits with quantized energy levels, which did not account for the wave-particle duality of electrons or the complexities of electron-electron interactions in multi-electron systems. This limitation led to further investigations into quantum mechanics, ultimately culminating in the development of more advanced models, such as quantum mechanics and wave functions.
The main contribution for which Ptolemy is famous is his discovery that the earth revolved around the sun. This was known as the heliocentric theory (and it competed with Catholic Church teaching of the time, which held that the earth was the center of the solar system or geocentric).
Michael Faraday's main contribution to atomic theory was his work on electrolysis, which demonstrated that chemical compounds are composed of discrete particles and that these particles carry an electric charge. This provided evidence for the existence of atoms and laid the foundation for the development of the modern atomic theory.
The protons and neutrons are the main contributors to the weight of an atomic element.
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Niels Bohr created the planetary model of the atom, including the nucleus and electrons. This, however, is not the accurate model of atoms. It is said to be the electron cloud which is most accurate
Democritus's main contribution to physics was discovery of the atom. He devoted his life to finding out as much as possible to create what is thought to be the first atomic theory.
The main deficiency of Bohr's atomic model was its inability to accurately explain the spectra of larger atoms beyond hydrogen and the phenomenon of electron behavior. The model treated electrons as fixed orbits with quantized energy levels, which did not account for the wave-particle duality of electrons or the complexities of electron-electron interactions in multi-electron systems. This limitation led to further investigations into quantum mechanics, ultimately culminating in the development of more advanced models, such as quantum mechanics and wave functions.
The idea that atoms are indivisible.
The Lydian's main contribution is that they invented the first coin.
Bohr's atomic model introduced some mechanical aspects to the atomic model, and, more importantly, it provided a theoretical frame for Rydberg's formula, which had been observed only empirically.
The main contribution is the development of new theorem in the subject area
What is the MAIN contribution of bookkeepers to troubleshooting corporate problems?
The main contribution for which Ptolemy is famous is his discovery that the earth revolved around the sun. This was known as the heliocentric theory (and it competed with Catholic Church teaching of the time, which held that the earth was the center of the solar system or geocentric).
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Masunaga was the founder of the Zen Shiatsu which was his main contribution to shiatsu.