Answer:
The systematic name for the coordination compound [PtF₄]²⁻ is tetrafluoridoplatinate(II) ion.
Step-by-step explanation:
In coordination compounds, the name is usually given in the following order:
1. Name of the ligands (in alphabetical order)
2. Name of the central metal atom/ion, which is modified by a Roman numeral to indicate its oxidation state.
In this case, the ligand is fluoride (F⁻), and there are four of them attached to the central metal ion, platinum (Pt²⁺).
The name of the ligand is simply "fluoride," without any prefixes, as there is only one type of ligand present.
The oxidation state of platinum can be calculated by considering the charge on the complex ion: the charge of the ion is 2- (since [PtF₄]²⁻), and each fluoride ion carries a charge of -1. Therefore, the oxidation state of Pt must be +2 to balance the charges.
Putting these pieces together, we get the name "tetrafluoridoplatinate(II) ion" for [PtF₄]²⁻.