Give the IUPAC names of the following compound `K_4[Ni(CN)_4]`

Explanation

To determine the IUPAC name of the compound \( K_4[Ni(CN)_4] \), we can follow these steps:

### Step 1: Identify the components of the compound
The compound consists of potassium ions \( K^+ \) and a coordination complex \( [Ni(CN)_4]^{4-} \). The potassium ions are outside the coordination sphere, while the nickel complex is inside.

### Step 2: Determine the charge of the coordination complex
The overall charge of the compound is neutral, and since there are four potassium ions (each with a +1 charge), the charge of the coordination complex must be -4 to balance the +4 from potassium.

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