Aufbau Principle: Building Electron Configurations

The video tutorial explains the concept of ground state in atoms, where electrons fill orbitals of lowest energy first. It introduces the order of orbital energy and the filling sequence, using Euler's and modulus diagrams to illustrate the process. The N plus L rule is discussed, explaining how electrons fill orbitals with lower N plus L values first. The tutorial compares orbital energies based on N and L values, emphasizing the priority of lower energy orbitals in electron filling.

How does the filling order of 1S and 2S orbitals illustrate the concept of energy levels?

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Compare the energy levels of 2P and 3S orbitals based on their N and L values.

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What conclusions can be drawn about the filling of orbitals based on the N plus L values?

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