Write the electronic configuration for: Draw the distribution of d electrons for

Question

Write the electronic configuration for: Draw the distribution of d electrons for the central atoms in the following molecules using crystal field theory. K_3[Cr(C_2O_4)_3) middot 3H_2O (octahedral) K_2(Cu(C_2O_4)_2] middot 2H_2O (tetrahedral) 3. Consider the four compounds K_3(Cr(C_2O_4)_3] middpt 3H_2O, K_2[Cu(C_2O_4)_2] middot 2H_2O, K_3[Fe(C_2O_4)_3] middot 3H_2O, and K_3[Al(C_2O_4)_3] middot 3H_2O. a. Which would be colored and which would be colorless? b. Briefly explain why the colored compounds are colored and why the colorless compounds are colorless.

Explanation / Answer

1. Cr3+ - [Ar]4s03d3

Cu2+ - [Ar]4s03d9

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