] The ground state for helium in electron configuration is 1s². The lowest excited state is 1s¹ 2s¹, while the 1s¹ 2p¹ configuration has higher energy. Using the spectroscopic notation, write down the allowed configurations according to the Pauli exclusion principle for each of the states above, explaining your reasoning. • Following the Hund's rules, give the ordering of the energy levels for each state, motivating your answers. Which transitions are allowed according to the selection rules between each of the excited state and the ground state?

] The ground state for helium in electron configuration is 1s². The lowest excited state is 1s¹ 2s¹, while the 1s¹ 2p¹ configuration has higher energy. Using the spectroscopic notation, write down the allowed configurations according to the Pauli exclusion principle for each of the states above, explaining your reasoning. • Following the Hund's rules, give the ordering of the energy levels for each state, motivating your answers. Which transitions are allowed according to the selection rules between each of the excited state and the ground state?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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