Question

Which element may react chemically by losing electrons from both s and d sub levels?

A)Be B)Al C)Fe D)Cl

Answer 1

I'm pretty sure it's Iron or FE

Answer 2

Answer: Fe

Explanation: Of the choices listed, only iron (Fe) is a transitional element that releases electrons from two outermost sublevels in a chemical reaction; notice the incomplete 3d sublevel in its electron configuration (Periodic Table)

Direct explanation from the answer page in CastleLearning