The coordination numbers of cobalt (III)and of chromium (III)in their complexes are always ________.
A)4
B)5
C)2
D)3
E)6

Question

Quizplus · Accepted Answer

The coordination numbers of cobalt (III) and chromium (III) are always 6. This is because they have 6 electrons in their outermost shell (d6 configuration) and can accommodate up to 6 ligands around the central metal ion. Coordination number refers to the number of atoms, ions or molecules that surround a central metal ion in a complex.

The Coordination Numbers of Cobalt (III)and of Chromium (III)in Their