https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:mass-spectrometry-of-elements/v/mass-spectrometry 2022-10-05T02:43:18.611402953Z Mass spectrometry In the analytical technique of mass spectrometry, atoms or molecules are ionized using a high-energy electron beam and then separated based on their mass-to-charge ratios (m/z). The results are presented as a mass spectrum, which shows the relative abundances of the ions on the y-axis and their m/z ratios on the x-axis. This data can be used to calculate the exact masses of the atoms or molecules in the sample. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/3c3932d6-ff0c-4228-94e1-46f0d93b935a_1280_720_base.png Mass spectrometry In the analytical technique of mass spectrometry, atoms or molecules are ionized using a high-energy electron beam and then separated based on their mass-to-charge ratios (m/z). The results are presented as a mass spectrum, which shows the relative abundances of the ions on the y-axis and their m/z ratios on the x-axis. This data can be used to calculate the exact masses of the atoms or molecules in the sample. https://cdn.kastatic.org/ka-youtube-converted/myolF-h1kKI.mp4/myolF-h1kKI.mp4 258 Fundamental particles: leptons, force carriers and the Higgs Boson https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:mass-spectrometry-of-elements/a/isotopes-and-mass-spectrometry 2022-01-11T22:17:00.362877679Z Isotopes and mass spectrometry article https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:modern-physics/x0e2f5a2c:wave-particle-duality/v/photon-energy 2024-07-15T03:10:22.417106256Z Photon energy Learn what a photon is and how to determine the energy of a photon as you explore the dual nature of light as both a wave and a particle, known as wave-particle duality. Uncover the concept of quantum mechanics, where light deposits energy in discrete amounts called photons. Investigate Planck's constant and how it relates to the energy of a photon. David SantoPietro video https://cdn.kastatic.org/googleusercontent/2aFknxFb-tlzge2Pv8ciTriLr98lwfI0zdhECAbuyJKKsuwK4Qlxrfc7yvfNo3uTaNhbct4BFNQBx5LKR9kOyxHt Photon energy Learn what a photon is and how to determine the energy of a photon as you explore the dual nature of light as both a wave and a particle, known as wave-particle duality. Uncover the concept of quantum mechanics, where light deposits energy in discrete amounts called photons. Investigate Planck's constant and how it relates to the energy of a photon. https://cdn.kastatic.org/ka-youtube-converted/Zqt3btS1FwE.mp4/Zqt3btS1FwE.mp4 558 Fundamental particles: leptons, force carriers and the Higgs Boson https://www.khanacademy.org/science/ap-physics-2/x0e2f5a2c:modern-physics/x0e2f5a2c:wave-particle-duality/v/photon-momentum 2024-07-15T03:10:22.417106256Z Photon momentum Learn how to determine the momentum of a photon. video https://cdn.kastatic.org/googleusercontent/QB6PvoZPj9a3NFJoTQx2Ja133wXPqIias3HYfzel6A5FeX1hTIyDhxSCAtVQPYfLn2ByJOd_Z3GW47r6jgXQ-wav Photon momentum Learn how to determine the momentum of a photon. https://cdn.kastatic.org/ka-youtube-converted/Qwtz-QSDyOM.mp4/Qwtz-QSDyOM.mp4 175 Fundamental particles: leptons, force carriers and the Higgs Boson https://www.khanacademy.org/college-careers-more/bjc/x4c51c62a:2020-challenge/x4c51c62a:2020-challenge-finalists/v/the-higgs-field-a-solution-to-a-massive-problem 2021-02-05T04:26:55Z The Higgs Field: A Solution To A Massive Problem By Lydia Taylor. Country: USA. Finalist: 2020 Breakthrough Junior Challenge video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw The Higgs Field: A Solution To A Massive Problem By Lydia Taylor. Country: USA. Finalist: 2020 Breakthrough Junior Challenge https://cdn.kastatic.org/ka-youtube-converted/H9aRiJXkau4.mp4/H9aRiJXkau4.mp4 178 Fundamental particles: leptons, force carriers and the Higgs Boson