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- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/05%3A_Electrons_in_Atoms/5.07%3A_Spectral_Lines_of_Atomic_HydrogenThis page discusses the evolution of scientific theory through automobile repairs and the Bohr model of the hydrogen atom. It highlights how energy changes in a hydrogen atom create spectral lines lin...This page discusses the evolution of scientific theory through automobile repairs and the Bohr model of the hydrogen atom. It highlights how energy changes in a hydrogen atom create spectral lines linked to electron transitions, successfully explaining the hydrogen emission spectrum but revealing limitations for multi-electron atoms. Key concepts include energy level quantization, the Balmer series, and the need for advancements in atomic theory.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/05%3A_Electrons_in_AtomsThis page addresses key topics in atomic and quantum physics, covering the electromagnetic spectrum, wave properties of light, and atomic models. It explains energy quantization, the photoelectric eff...This page addresses key topics in atomic and quantum physics, covering the electromagnetic spectrum, wave properties of light, and atomic models. It explains energy quantization, the photoelectric effect, and Bohr's atomic model. Important concepts like the Heisenberg Uncertainty Principle, quantum mechanics, and electron configurations are examined.
- https://chem.libretexts.org/Courses/Western_Washington_University/Biophysical_Chemistry_(Smirnov_and_McCarty)/05%3A_Nuclear_Magnetic_Resonance_(NMR)_Spectroscopy_-_Introduction/5.02%3A_Basic_NMR_Excite-Record_Experiment_and_Related_SpectrumIn this Chapter, we will consider the most basic type of NMR experiment: acquiring a 1D data for a spin-?? sample pre-equilibrated in an external, static magnetic field. We will see how the properties...In this Chapter, we will consider the most basic type of NMR experiment: acquiring a 1D data for a spin-?? sample pre-equilibrated in an external, static magnetic field. We will see how the properties of the NMR setup (e.g., static magnet power) and of the target system (e.g. the gyromagnetic ratio value) are affecting the obtained spectra. Finally, we will briefly explain why we are seeing spectra at all, that is why nuclei of the same chemical type report different NMR frequencies.