Atomic models and periodicity | Chemistry | Khan Academy - Introduction to electron configurations | AP Chemistry | Khan Academy

Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:atomic-structure-and-properties/x2eef969c74e0d802:atomic-structure-and-electron-configuration/v/introduction-to-electron-configurations Want to explore more? Check out the full Atomic models and periodicity playlist here: https://www.youtube.com/playlist?list=PLSQl0a2vh4HD2AZcy7Pe8mHAiO5UG2WKt Electron configurations describe where electrons are located around the nucleus of an atom. For example, the electron configuration of lithium, 1s²2s¹, tells us that lithium has two electrons in the 1s subshell and one electron in the 2s subshell. Sections: 00:00 - Introduction to orbitals and subshells 00:33 - Electron capacity of s, p, d, and f subshells 01:11 - Electron configuration overview 01:27 - Hydrogen and helium configurations 02:23 - Electron configuration of lithium and beryllium 03:21 - Boron and carbon configurations 04:29 - Noble gas notation for electron configurations ------------------ Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc