https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:modern-physics/x0e2f5a2c:wave-particle-duality/v/de-broglie-wavelength 2024-07-15T03:10:22.417106256Z de Broglie wavelength Is it a particle or a wave? This is the question that physicists of the 1920s were asking about light. In 1924, Louis de Broglie took this question to another level as he explored how electrons - which are matter, and were thought to be simply particles - can behave like waves. video https://cdn.kastatic.org/googleusercontent/7Soiti86LxGGrb_QJmrmfJKFUhRkqTg1tq3e_RkAZ9IF-ZzGMCo1Re7t1y4ycxLrIg1SC7GiUg6CVC8eK45FZcIOng de Broglie wavelength Is it a particle or a wave? This is the question that physicists of the 1920s were asking about light. In 1924, Louis de Broglie took this question to another level as he explored how electrons - which are matter, and were thought to be simply particles - can behave like waves. https://cdn.kastatic.org/ka-youtube-converted/iTRxuBxttj8.mp4/iTRxuBxttj8.mp4 680 Atomic spectra and the wave nature of electrons https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:modern-physics/x0e2f5a2c:wave-particle-duality/e/de-broglie-equation 2025-02-02T07:53:56.460765089Z de Broglie wavelength Let's practice some problems to better understand the dependence the de Broglie wavelength associated with particles on various parameters. exercise https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:modern-physics/x0e2f5a2c:atoms-and-light/v/bohr-model-energy-levels-derivation-using-physics 2021-01-04T18:35:19Z Bohr model energy levels (derivation using physics) Using classical physics to calculate the energy of electrons in Bohr model. Solving for energy of ground state and more generally for level n.    Jay video https://cdn.kastatic.org/googleusercontent/m--pG3oOviyFXEyiv2TyxmKq4HPS-BL2tts2rcL81FNMHlqhHq8dMUKcekoTqB7hdzRCD5J07sEWSsGcKMZ9zN-_ Bohr model energy levels (derivation using physics) Using classical physics to calculate the energy of electrons in Bohr model. Solving for energy of ground state and more generally for level n.    https://cdn.kastatic.org/ka-youtube-converted/7Zin8hG9Nhw.mp4/7Zin8hG9Nhw.mp4 728 Atomic spectra and the wave nature of electrons https://www.khanacademy.org/science/in-in-class-12th-physics-india/in-in-atoms/in-in-atoms-and-electrons/a/bohrs-model-of-hydrogen 2025-02-05T10:28:14.374739025Z Bohr's model of hydrogen How Bohr's model of hydrogen explains atomic emission spectra article https://www.khanacademy.org/science/in-in-class-12th-physics-india/in-in-atoms/in-in-atoms-and-electrons/e/bohrs-atom-energy-levels 2025-02-02T07:53:56.460765089Z Bohr model: energy levels exercise https://www.khanacademy.org/science/in-in-class-12th-physics-india/in-in-atoms/in-in-atoms-and-electrons/v/absorption-and-emission 2021-01-04T18:35:18Z Absorption and emission Using shell model diagram to relate absorption to emission. Derives relationship between emitted photon and energy levels, the Balmer-Rydberg equation. Jay video https://cdn.kastatic.org/googleusercontent/6zegp8hauf_JXFjKlgIzCfXDwBelIMd19D7NIpqFjemX0V8xHrXLkn2IyzpzOSIr4iZJNPD8gD-b4DD7jL57w2AVIQ Absorption and emission Using shell model diagram to relate absorption to emission. Derives relationship between emitted photon and energy levels, the Balmer-Rydberg equation. https://cdn.kastatic.org/ka-youtube-converted/AznXSVx2xX0.mp4/AznXSVx2xX0.mp4 630 Atomic spectra and the wave nature of electrons https://www.khanacademy.org/science/hs-chemistry/x2613d8165d88df5e:atomic-models-and-periodicity/x2613d8165d88df5e:the-bohr-model-and-atomic-spectra/a/absorptionemission-lines 2024-11-11T03:02:04.50965229Z Absorption/emission lines Learn why every element has a unique emission/absorption spectrum, and how we can use spectral lines to identify the composition of an object. article https://www.khanacademy.org/science/grade-12-physics-snc-aligned/xe5ce5527f6f71ade:quantum-physics/xe5ce5527f6f71ade:atomic-spectra-and-the-wave-nature-of-electrons/v/emission-spectrum-of-hydrogen-edited 2021-05-25T21:59:58Z Emission spectrum of hydrogen Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. video https://cdn.kastatic.org/googleusercontent/Fgu6u21YVb1UmOeyEV2jlV48VEc_z7RCItt6lBZmGDQxIYyrXQs79As56WAs_ckm8duEPY2NvMFDLV4NLdkT1dU Emission spectrum of hydrogen Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. https://cdn.kastatic.org/ka-youtube-converted/12yg1R0RtSk.mp4/12yg1R0RtSk.mp4 646 Atomic spectra and the wave nature of electrons https://www.khanacademy.org/science/grade-12-chemistry-snc-aligned/x7a43e770fc9e15cf:spectroscopy/x7a43e770fc9e15cf:structural-determination-of-compounds-using-spectroscopic-techniques/a/spectroscopy-interaction-of-light-and-matter 2021-04-29T07:57:33Z Spectroscopy: Interaction of light and matter How UV-Vis and IR radiation can be used to chemical structure and concentrations of solutions article