The complete electron configuration of selenium,element 34,is ________. A)1s²2s² 2p¹⁰ 3s² 3p¹⁰4s²3d⁶ B)1s²2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁴ C)1s⁴2s⁴ 2p⁶3s⁴ 3p64s⁴3d⁶ D)1s⁴2s⁴ 2p¹⁰3s⁴3p¹⁰4s² E)1s⁴2s⁴ 2p⁸3s⁴3p⁸ 4s⁴ 3d²

Question

Quizplus · Accepted Answer

The electron configuration of selenium can be determined by adding up the number of electrons in each shell using the Aufbau principle. The correct configuration is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4, which is shown in option B. Option A has errors in the 3p and 3d subshells. Option C has errors in the 3p and 4p subshells. Option D has errors in the 3p and 4s subshells. Option E is incomplete, and does not include all of the electrons in the correct subshells.

The Complete Electron Configuration of Selenium,element 34,is ________