Chemical Name:
K3[Fe(CN)6]

IUPAC Name:
Potassium hexacyanoferrate(III)

Explanation:

Potassium:
- "K" represents the element potassium in the formula.
- It is a Group 1 metal with a +1 charge.

Hexacyanoferrate(III):
- "Fe(CN)6" represents the complex ion hexacyanoferrate(III).
- "Fe" stands for iron with a +3 oxidation state.
- "CN" represents the cyanide ligand, which is a strong field ligand.
- The complex ion has a total charge of -3 to balance the +3 charge of iron.

Overall Structure:
- The compound is a salt formed by combining the potassium cation with the hexacyanoferrate(III) anion.
- The chemical formula K3[Fe(CN)6] indicates that there are three potassium ions for every hexacyanoferrate(III) ion.
- The coordination complex has a central iron atom surrounded by six cyanide ligands arranged in an octahedral geometry.

Conclusion:
- The IUPAC name of K3[Fe(CN)6] is potassium hexacyanoferrate(III), which accurately describes the composition and structure of the compound.