How many 3d electrons does a ground-state Fe³⁺ ion have? A) 3 B) 5 C) 6 D) 7 E) 9

Name: How many 3d electrons does a ground-state Fe 3+ ion have? A) 3 B) 5 C) 6 D) 7 E) 9
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Question

Quizplus · Accepted Answer

Fe in its ground state has 6 3d electrons. However, the ion specified is Fe^3+, which means it has lost 3 electrons. These electrons are removed from the 4s orbital first (which contains 2 electrons) and then from the 3d orbital. Therefore, Fe^3+ has 5 3d electrons remaining.

How Many 3d Electrons Does a Ground-State Fe3+ Ion Have

How Many 3d Electrons Does a Ground-State Fe³⁺ Ion Have