How many 3d electrons does an Fe³⁺ ion have A) 9 B) 6 C) 5 D) 4 E) 3

Question

Quizplus · Accepted Answer

Fe in its elemental form has an electron configuration of [Ar] 3d^6 4s^2. When forming the Fe³⁺ ion, which is a typographical error but seems to refer to an iron ion with a +3 charge (Fe^3+), three electrons are removed. The electrons are first removed from the 4s orbital and then from the 3d orbital. Therefore, Fe^3+ has 5 electrons in its 3d orbital ([Ar] 3d^5).

How Many 3d Electrons Does an Fe3+ Ion Have

How Many 3d Electrons Does an Fe³⁺ Ion Have