Which of the following is the ground-state electron configuration of a calcium atom? A)[Ne]3s² B)[Ne]3s²3p⁶ C)[Ar]4s¹3d¹ D)[Ar]4s² E)[Ar]3d²

Question

Quizplus · Accepted Answer

The electron configuration of calcium is 1s²2s²2p⁶3s²3p⁶4s². However, we need to use the noble gas shorthand notation, which is [Ar]4s², where [Ar] represents the electron configuration of argon (1s²2s²2p⁶). Therefore, the correct option is D.

Which of the Following Is the Ground-State Electron Configuration of a Calcium