Which of the following is the ground-state electron configuration of the Ca²⁺ ion?

Question

Quizplus · Accepted Answer

The correct notation for the ground-state electron configuration of the given ion should reflect the removal of electrons from the outermost orbitals first, following the ionization principle. The given ion seems to be a hypothetical or incorrectly notated species, but interpreting the intent: for a species derived from calcium (Ca) with additional electrons or modifications, the closest realistic configuration starting from calcium's ground state ([Ar]4s^2) and adjusting for any additional electrons or charges would still fundamentally retain the core configuration of [Ar] or [Ne] for ions derived from elements in earlier periods. The correct answer, based on standard electron configuration principles and the apparent atomic structure suggested, is D, which aligns with the principle of filling 3s and 3p orbitals after the [Ne] core, a common configuration for ions in the second period of the periodic table, adjusted for the context of the question.

Which of the Following Is the Ground-State Electron Configuration of the Ca2+

Which of the Following Is the Ground-State Electron Configuration of the Ca²⁺