The EAN (Effective Atomic Number) of platinum in potassium hexachloroplatinate (IV) is:
Correct answer: B. 86
- A. 46
- B. 86
- C. 36
- D. 84
Explanation
EAN = atomic no. of the metal - no. of electron lost in ion formation + no. of electrons gained from the donor atoms of the ligand = 78 - 4 + 2 × 6 = 86.
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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