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 can be written as follows: 
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p1
This can also be abbreviated using the noble gas notation as:
[Ar] 3d10 4s2 4p1
Therefore, the correct electron configuration option would be B, which correctly shows the filling of the energy levels for a gallium atom.

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