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ATOMIC AND MOLECULAR STRUCTURE
Position of an element in the Periodic Table, its atomic number and atomic mass Periodic Table to identify metals, semimetals, nonmetals, and halogens Periodic Table to identify alkali metals, alkaline earth metals and transition metals, and trends in ionization energy, elec..
ATOMIC AND MOLECULAR STRUCTURE
Position of an element in the Periodic Table, its atomic number and atomic mass Periodic Table to identify metals, semimetals, nonmetals, and halogens Periodic Table to identify alkali metals, alkaline earth metals and transition metals, and trends in ionization energy, elec..
Bohr's Model of an Atom
Bohr's Model of an Atom - Rutherford's model had a major drawback. It could not explain why ultimately electrons did not fall into the nucleus by taking a spiral path. This was in concurrence with the electromagnetic theory that states 'if a charged particle undergoes accelerate..
Bohr's Model of an Atom - Rutherford's model had a major drawback. It could not explain why ultimately electrons did not fall into the nucleus by taking a spiral path. This was in concurrence with the electromagnetic theory that states 'if a charged particle undergoes accelerate..Atoms and Molecules Introduction
Atoms and Molecules - Atoms And Molecules From the earliest times, man has always wondered about the ultimate nature of matter. He has searched to establish the basic constituents of all the substances. However, earlier efforts were more in the nature of speculations and not bas..
Atoms and Molecules - Atoms And Molecules From the earliest times, man has always wondered about the ultimate nature of matter. He has searched to establish the basic constituents of all the substances. However, earlier efforts were more in the nature of speculations and not bas..Bohr's Atomic Model
In 1913, Neils Bohr proposed a model of an atom based on the Planck's quantum theory of radiation. The basic postulates of Bohr's theory are: An atom consists of a small, heavily positively charged nucleus around which electrons revolve in definite circula..
In 1913, Neils Bohr proposed a model of an atom based on the Planck's quantum theory of radiation. The basic postulates of Bohr's theory are: An atom consists of a small, heavily positively charged nucleus around which electrons revolve in definite circula..Valence Shell Electron Pair Repulsion (VSEPR) Theory
The VSEPR theory, proposed by R.J.Gillespie and R.S. Nyholmm in 1957, is based on the repulsions between the electron-pairs in the valence-shell of the atoms in the molecule. It was developed to predict the shapes of the molecules in which the atoms are bonded together..
Electromagnetic Radiation and Energy(Planck's quantum theory)
In 1900, Max Planck presented the results of his famous black body radiation experiments, which showed that light has a dual character, behaving like a particle as well as a wave. He gave the Quantum Theory of Radiation explaining electromagnetic radiation and energy. Its main features ..
Bohr's atomic model explained successfully:
. Lyman series from n = 2, 3, 4, 5to n = 1 Balmer series from n = 3, 4, 5, 6to n = 2 Paschen series from n = 4, 5, 6, 7to n = 3 Brackett series from n = 5, 6, 7, 8to n = 4 Pfund series from n = 6, 7, 8, 9to n = 5. The energy of the electron in a particular orbit of hydrogen atom could be ..
. Lyman series from n = 2, 3, 4, 5to n = 1 Balmer series from n = 3, 4, 5, 6to n = 2 Paschen series from n = 4, 5, 6, 7to n = 3 Brackett series from n = 5, 6, 7, 8to n = 4 Pfund series from n = 6, 7, 8, 9to n = 5. The energy of the electron in a particular orbit of hydrogen atom could be ..Rutherford's Atom Model (Main Features)
>As the radiating energy of a revolving electron (according to classical electromagnetic theory) continuously decreases the electron should follow a spiral path and fall into the nucleus. So this atomic model could not account for the stability of the atom. The observe..
>As the radiating energy of a revolving electron (according to classical electromagnetic theory) continuously decreases the electron should follow a spiral path and fall into the nucleus. So this atomic model could not account for the stability of the atom. The observe..The Atom
When scientists started exploring matter, they realised that matter can be divided into smaller and still smaller particles. What was the ultimate particle like? They discovered that the smallest particle of an element that maintains its chemical identity through all chemical and physical changes ..
When scientists started exploring matter, they realised that matter can be divided into smaller and still smaller particles. What was the ultimate particle like? They discovered that the smallest particle of an element that maintains its chemical identity through all chemical and physical changes ..See what our Users say :
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