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  2. Bohr model - Wikipedia

    en.wikipedia.org/wiki/Bohr_model

    The Bohr model is the first successful model of the atom, developed by Niels Bohr and building on Ernest Rutherford's nuclear model. It explains the spectral lines of hydrogen and other atoms by quantizing the electron orbits and assuming that radiation is emitted or absorbed when electrons jump between orbits.

  3. Isotopes of nitrogen - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_nitrogen

    Learn about the different isotopes of nitrogen, their decay modes, half-lives, and applications. Nitrogen-14 is the most abundant isotope, while nitrogen-15 is used in NMR spectroscopy and nitrogen-16 is a radioisotope in nuclear reactors.

  4. Bohr model of the chemical bond - Wikipedia

    en.wikipedia.org/wiki/Bohr_model_of_the_chemical...

    The Bohr model of the chemical bond took into account the Coulomb repulsion - the electrons in the ring are at the maximum distance from each other. [2] Thus, according to this model, the methane molecule is a regular tetrahedron, in which center the carbon nucleus locates, and in the corners - the nucleus of hydrogen. The chemical bond between ...

  5. Bohr–Sommerfeld model - Wikipedia

    en.wikipedia.org/wiki/Bohr–Sommerfeld_model

    Calculations based on the Bohr–Sommerfeld model were able to accurately explain a number of more complex atomic spectral effects. For example, up to first-order perturbations, the Bohr model and quantum mechanics make the same predictions for the spectral line splitting in the Stark effect. At higher-order perturbations, however, the Bohr ...

  6. Atomic orbital - Wikipedia

    en.wikipedia.org/wiki/Atomic_orbital

    An atomic orbital is a function describing the location and wave-like behavior of an electron in an atom. The electron cloud model is a modern framework for visualizing submicroscopic behavior of electrons in matter, based on atomic orbitals.

  7. Rutherford scattering experiments - Wikipedia

    en.wikipedia.org/wiki/Rutherford_scattering...

    Learn how Rutherford and his colleagues discovered the nucleus of the atom by measuring how alpha particles are scattered by a thin metal foil. Find out the history, the method, and the results of the landmark experiments that changed the understanding of atomic structure.

  8. Atom - Wikipedia

    en.wikipedia.org/wiki/Atom

    The Bohr model of the atom, with an electron making instantaneous "quantum leaps" from one orbit to another with gain or loss of energy. This model of electrons in orbits is obsolete. A problem in classical mechanics is that an accelerating charged particle radiates electromagnetic radiation, causing the particle to lose kinetic energy.

  9. Bohr effect - Wikipedia

    en.wikipedia.org/wiki/Bohr_effect

    The Bohr effect is the shift in hemoglobin's oxygen binding affinity caused by changes in carbon dioxide or pH. It increases the efficiency of oxygen transportation and adapts to changing conditions. Learn about the discovery, physiological role, and mechanism of the Bohr effect.

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