The complete electron configuration of gallium, element 31, is __________. A)1s²2s²2p¹⁰3s²3p¹⁰4s²3d³ B)1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p¹ C)1s⁴2s⁴2p⁶3s⁴3p⁶4s⁴3d³ D)1s⁴2s⁴2p¹⁰3s⁴3p⁹ E)1s⁴2s⁴2p⁸3s⁴3p⁸4s³

Question

Quizplus · Accepted Answer

The electron configuration of gallium is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1. The closest option to this is option B which correctly shows the complete electron configuration for gallium. Option A includes an extra 3d subshell that does not exist in gallium. Option C and D have the incorrect number of electrons in some of the subshells. Option E has an extra 4s subshell that does not exist in gallium.

The Complete Electron Configuration of Gallium, Element 31, Is __________