write the electronic configuration of fe2 and fe3 . [fe= 26]. which out of the two ions is more stable and why?
A) Fe²⁺: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶; Fe³⁺: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵
B) Fe²⁺: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶; Fe³⁺: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁷
C) Fe²⁺: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵; Fe³⁺: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁶
D) Fe²⁺: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵; Fe³⁺: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁷
