Which one is most likely to be the ground-state electron configuration of Co3+ ? A) [Ar]3d5 B) [Ar]3d44s2 C) [Ar]3d6 D) [Ar]3d64s1 E) [Ar]3d54s2

the answer is the

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.

i'm wiling to try and you : )

the answer is c.the valence of the atoms combine .