using-the-periodic-table-deduce-the-electron-configuration-for-the-ion-fe

Question

Using the periodic table, deduce the electron configuration for the ion Fe²⁺.

Accepted Answer

[Ar] 3d6

Answer

[Ar] 3d5

Answer

[Ar] 3d⁵ 4s¹

Answer

[Ar] 3d7

Using the periodic table, deduce the electron configuration for the ion Fe2+.